Module 2

Question 1 of 78

1. Question

Which of the following WELL Features is a Precondition of certification for a New Office Building Project?

Feature 14 Air infiltration management
Feature 23 Advanced air purification
Feature 11 Fundamental Material Safety
Feature 26 Enhanced material safety

Question 2 of 78

2. Question

Who among the following team members are responsible for completing performance tests after occupancy that confirms the project is meeting minimum air quality requirements?

Commissioning Authority
MEP Engineer
WELL Assessor
General Contractor

Question 3 of 78

3. Question

Which of the following metric MUST the project team use to document building materials to comply with Feature 26 Enhanced Material Safety requirements?

Weight
Cost
Project team may decide it
Volume
Area

Question 4 of 78

4. Question

Which of the following strategies will assist a project team when selecting building materials to comply with Feature 26 Enhanced Material Safety? Choose 3

The project completes all Imperatives in the Materials Petal under the Living Building Challenge
The project completes all Imperatives in the Air Petal under the Living Building Challenge
At least 25% of products by cost are Cradle to Cradle™ Material Health Certified
At least 10% of products by cost are Cradle to Cradle™ Material Health Certified
At least 25% of products by cost have no GreenScreen® Benchmark substances over 1,000 ppm, as verified by a qualified Ph.D. toxicologist or Certified Industrial Hygienist.
No asbestos content in newly added building materials
No more than 100 ppm (by weight) added lead in newly added building materials

Question 5 of 78

5. Question

Exposure to carbon monoxide leads to which of the following and be dangerous to human health?

It makes asthma and respiratory irritation worse
It bio-accumulate in fat and result in food chain contamination, including human milk
It can cause skin irritation and rashes
It binds to hemoglobin more readily than oxygen and cause hypoxia

Question 6 of 78

6. Question

Which of the following metric MUST the project team use to document furniture with perfluorinated compounds (PFCs) content to comply with Feature 25 ‐ Toxic Material Reduction?

Weight
The project team cannot earn this feature
Cost
Its upto to the project team
Volume

Question 7 of 78

7. Question

Which of the following standards establishes limits for the VOC content for Feature 04 VOC Reduction? Choose 3

CDPH
SCAQMD Rule 1113 & Rule 1168
EPA-NAAQS
ANSI/BIFMA e3‐2011
ASHRAE 90.1

Question 8 of 78

8. Question

Which of the following standards establishes limits for the VOC content of furniture for Feature 04 VOC Reduction?

SCAQMD
ANSI/BIFMA
CDPH
CARB
ASTM

Question 9 of 78

9. Question

Which of the following is NOT a requirement of high-touch surfaces for Feature 28 Cleanable Environment?

Smooth and free of defects
Finished and smooth welds and joints
Adequate flexible storage space for all permanent, movable items
Free of sharp angles, corners, and crevices

Question 10 of 78

10. Question

What are the minimum dimensions required for permanent entryway walk-off systems as required by Feature 08 ‐ Healthy Entrance?

At least the width of the doorway
At least the width of the entrance and 3 m [10 ft] long in the primary direction of travel
At least the width of the entrance and 6 m [20 ft] long in the primary direction of travel
At least the width of the entrance and 1 m [3 ft] long in the primary direction of travel

Question 11 of 78

11. Question

What are the minimum dimensions required for walk-off systems used during construction for dust containment and removal as required by feature 07 Construction Pollution Management?

At least the width of the doorway and 2m (6 ft) long in the direction of travel
3m (10 ft) long in the direction of travel
2m (6 ft) long in the direction of travel
There is no minimum dimension

Question 12 of 78

12. Question

Which of the following should be analyzed before integrating operable windows?

Outdoor air quality conditions, including annual prevailing breeze patterns and average contaminant levels
Outdoor air quality conditions, including annual prevailing breeze patterns and relative humidity
Relative humidity
Indicator lights at all operable windows
Outdoor levels of ozone, PM₁₀, temperature and humidity

Question 13 of 78

13. Question

Which of the following should be monitored after integrating operable windows in WELL project in order to comply with Feature 19 Operable Windows?

Outdoor air quality conditions, including annual prevailing breeze patterns and relative humidity
Relative humidity
Indicator lights at all operable windows
PM₁₀, temperature and humidity

Question 14 of 78

14. Question

In order to comply with Feature 26 Enhanced Material Safety, 25% of products (by cost) must be certified under which of the following standards?

Cradle to Cradle
GreenScreen Benchmark I
California Air Resources Board
Green Seal

Question 15 of 78

15. Question

A project is located within .5 mile to a data-gathering station that monitor outdoor levels of ozone, PM₁₀, temperature and humidity. Which of the following WELL features may this affect?

19 ‐ Operable Windows
18‐ Air Quality Monitoring And Feedback
16 ‐ Humidity Control
14 ‐ Air Infiltration Management

Question 16 of 78

16. Question

A project team is preparing a green cleaning plan and is looking at adding a list of green cleaning products. When selecting cleaning products, which of the following standards should be referenced?

Ecologo
Green Seal
LEED EBOM
EPA’s Design for the Environment, UL EcoLogo, Green Seal and LEED EBOM guidelines

Question 17 of 78

17. Question

In order to meet Feature 29 requirements, the green cleaning team should implement which of the following? Choose 3

Mops, rags and dusters used to clean all non‐porous surfaces consist of microfiber with a denier nohigher than 1.0
Mops, rags and dusters used to clean all non‐porous surfaces consist of microfiber with a denier nohigher than 2.0
Vacuum cleaners contain filters with a HEPA rating
Vacuum cleaners contain filters with a MERV rating
Bleach and ammonia‐based cleaning products are kept in separate bins with large color coded labels
Bleach and ammonia‐based cleaning products are kept in separate bins

Question 18 of 78

18. Question

Which recommended strategy can suppress microbe build-up on high-touch surfaces and reduce the need for cleaning chemicals to meet Feature 27‐ Antimicrobial Activity for Surfaces?

Using microfiber cloth cleaning towels
Frequent Cleaning
Providing more storage
Using vacuum cleaners with HEPA filters
Cleaning with a UV device with an output of at least 4 mW/cm2

Question 19 of 78

19. Question

A project is using Ultraviolet lamps on the cooling coils and drain pans of the mechanical system supplies to reduce cooling coil mold growth. The team is also preparing a building policy to inspect all cooling coils on a quarterly basis for mold growth and clean if necessary. What should be submitted to IWBI in support of this?

Visual Inspection Report
Dated photos demonstrating adherence
Copy of Policy Document
Mold Inspections

Question 20 of 78

20. Question

For which Feature in the WELL Building Standard is envelope commissioning required?

Air Infiltration Management
Moisture Management
Air Filtration
Increased Ventilation

Question 21 of 78

21. Question

The use of UVGI is required for which of the following Features?

Feature 06 Microbe and Mold Control
Feature 22 Pest Control
Feature 09 Cleaning Protocol
Feature 12 Moisture Management

Question 22 of 78

22. Question

The project team for newly built office building performed a whole building flushout in order to reduce VOCs or other air pollutants. What other strategy should the team take just prior to occupancy?

Continue flushing more air
Replace all air filters with new filters
Seal ducts from contamination
Testing and Balancing

Question 23 of 78

23. Question

What spaces should a project team include in direct exhausting in order to comply with Feature 17 Direct Source Ventilation? Choose 2

Printer rooms
Classrooms
Elevator shafts
Main lobby
Chemical storage units
Bathrooms

Question 24 of 78

24. Question

What air volume is required for Feature 13 Air Flush-out before occupancy?

4,500 m3 per 1 m2 of floor area / 14,000 ft³ per ft² of floor area
9,000 m3 per 1 m2 of floor area / 28,000 ft³ per ft² of floor area
2,250 m3 per 1 m2 of floor area / 7,000 ft³ per ft² of floor area
1,066 m³ of outdoor air per m² of floor area / 3,500 ft³ per ft² of floor area

Question 25 of 78

25. Question

Which of the following strategies should a project team install in order to protect the building occupants from exposure to the particulates thereby comply with Feature 05 Air Infiltration? Choose 2

Install MERV 10 filters
Install MERV 13 filters
Demonstrate ambient outdoor PM10 and PM2.5 is within WELL quality standards for 90% of the hours within 1.6 Km [1 Mile) of the building
Install Carbon filters
Demonstrate ambient outdoor PM10 and PM2.5 is within WELL quality standards for 75% of the hours within 1.6 Km [1 Mile) of the building

Question 26 of 78

26. Question

Which of the following WELL Features requires that mops, rags and dusters used to clean non-porous surfaces consist of microfiber with a denier no higher than 1.0?

Feature 09 Cleaning Protocol
Feature 28 Cleanable Environment
Feature 27 Antimicrobial Activity for Surfaces
Feature 29 Cleaning Equipment

Question 27 of 78

27. Question

Which of the following should a project located in a climate with narrow humidity ranges implement in order to meet the requirements of feature 16 Humidity Control?

Install a ventilation system with the capability to maintain relative humidity between 30% to 50% at all times
Install a ventilation system with the capability to maintain relative humidity between 30% to 40% at all times
Perform an envelope commissioning to the entire building envelope
Utilize modeling software to demonstrate that humidity levels in the space are within 30% to 50% for at least 95% of all business hours of the year
Utilize modeling software to demonstrate that humidity levels in the space are within 30% to 40% for at least 95% of all business hours of the year

Question 28 of 78

28. Question

A project has decided to install Dedicated Outdoor Air Systems (DOAS). In the absence of a local code regulating dedicated outdoor air systems, what should a project team do to comply with the requirements of Feature 20 Dedicated Outdoor Air Systems?

Have a detailed design review of the dedicated outdoor air system by an independent, qualified, registered professional mechanical engineer
Follow the published and peer-reviewed ASHRAE guide on dedicated outdoor air systems
Consult with manufacturer of the planned dedicated outdoor air system to ensure proper installation and operation
Submit monthly data on thermal comfort, ventilation rates, and system serviceability to IWBI

Question 29 of 78

29. Question

Which of the following standards/guide/guidelines should projects teams refer for managing moisture with respect to indoor air quality?

National Institute of Building Science’s “Whole Building Design Guide”
ASHRAE 62.1
EPA’s “Moisture Control Guidance for Building Design, Construction and Maintenance”
The Moisture Control Handbook
ASHRAE 55

Question 30 of 78

30. Question

Which of the following parameters are required parameters to display real-time data on indoor environmental quality to meet the requirements of Feature 18 Air Quality Monitoring and Feedback? Choose 3

Carbon monoxide
Carbon dioxide
Temperature
Humidity
Air flow
Particulate Matter within 1 mile radius

Question 31 of 78

31. Question

What is the maximum level of carbon dioxide allowed for demand controlled ventilation (DCV) as required under Feature 03 Ventilation Effectiveness?

800 ppm
700 ppm
1,000 ppm
600 ppm

Question 32 of 78

32. Question

Demand Controlled Ventilation is recommended for what type of spaces?

All Spaces larger than 93 m² [1000 ft²]
All spaces 46.5 m² [500 ft²] or larger with an actual or expected occupant density greater than 25 people per 93 m²[1,000 ft²]
All spaces with an actual or expected occupant density greater than 25 people per 93 m²[1,000 ft²]
All spaces 93 m² [1000 ft²] or larger with an actual or expected occupant density greater than 25 people per 93 m²[1,000 ft²]

Question 33 of 78

33. Question

Which of the following documents MUST be submitted to verify successful implementation of Part 3. System Balancing for Feature 03 ‐ Ventilation Effectiveness?

Policy Document
Letter of Assurance from MEP
Commissioning Report
Performance Verification

Question 34 of 78

34. Question

Which of the following standards MUST be used for Part 1 Ventilation design for Feature 03 ‐ Ventilation Effectiveness?

ASHRAE 62.1.2013
ASHRAE 90.1.2007
ASHRAE 55-2013
ASHRAE 52.1
ASHRAE Guidelines RP‐949

Question 35 of 78

35. Question

Which of the following is NOT a relevant standard for cleaning products?

Green Seal
San Francisco Environment Code I
UL EcoLogo
EPA Design for the Environment Program

Question 36 of 78

36. Question

Which of the following is a component in which urea-formaldehyde must be limited to a maximum of 100 ppm according to Feature 25 Toxic Material Reduction? Choose 3

Laminating adhesives and resins
Furniture
Paints
Thermal insulation
Carpets

Question 37 of 78

37. Question

Which of the following are ongoing requirements for indoor air monitoring in Feature 18 Air Quality Monitoring and Feedback?

Record data at hourly intervals; Send monthly reports to IWBI
Record data at hourly intervals; Send annual reports to IWBI
Record data at daily intervals; Send annual reports to IWBI
Record data at 30 minute intervals; Send annual reports to IWBI

Question 38 of 78

38. Question

Which of the following are ongoing requirements is required for WELL project teams to demonstrate that air purification strategies are in proper operation?

Annual letters from third party agents that air filtration/sanitation systems are in place
Annual records of filtration/sanitation maintenance
Monthly letters from third party inspectors that air filtration/sanitation systems are in place
Monthly records of filtration/sanitation maintenance

Question 39 of 78

39. Question

In order to comply with Feature 14 –Air Infiltration Management, which of the following is recommended to test air infiltration and ensure the building is airtight prior to occupancy? Choose 2

Retrocommissioning
Envelope commissioning
Air flush
Indoor Air Quality test
Utilizing thermal breaks and water-impervious materials for building envelope

Question 40 of 78

40. Question

Mops, rags, and dusters used to clean high-touch surfaces should have a denier no higher than what amount to meet feature 29 – Cleaning Equipment?

6.0
2.0
1.0
10.0

Question 41 of 78

41. Question

A new construction project with regularly occupied space above and below ground is pursuing WELL certification. An initial Air test shows compliance with the minimum requirements for particulate matter and inorganic gases carbon monoxide and ozone. What else should the project comply with for WELL certification? Choose 3

Carbon monoxide less than 9 ppm
Ozone less than 51 ppb
Radon less than 4 pCi/L
Formaldehyde less than 27 ppb
Total volatile organic compounds less than 500 μg/m³
PM₂.₅ less than 15 μg/m³

Question 42 of 78

42. Question

Which of the following should be referenced for a list of acceptable pesticides?

The City of San Francisco Department of the Environment’s (SFE) Reduced-Risk Pesticide List
Green Seal
LEED v4 O+M
Green Guard

Question 43 of 78

43. Question

Which of the following should be referenced for Building Envelope Commissioning? Choose 2

ASHRAE Guideline 0-2005
ASHRAE 90.1
ASHRAE 55.2
National Institute of Building Sciences (NIBS) Guideline 3-2012
LEED v4 O+M
Green Guard

Question 44 of 78

44. Question

Which of the following MUST occur for a project to meet the minimum requirements within Feature 01 Air Quality Standards?

A performance test after building occupancy to independently verify the presence of Volatile Substances, Particulate Matter and Radon
A performance test before building occupancy to independently verify the presence of Volatile Substances, Particulate Matter and Radon
A spot check for the presence of VOCs
A letter of assurance from the owner for ongoing testing

Question 45 of 78

45. Question

Who among the following professionals would be most appropriate to perform a review of the planned dedicated outdoor air systems?

A mechanical engineer not employed or contracted by the project’s engineering company
The Architect
The Mechanical Engineer of record
An ASHRAE Engineer part of the project design team
Owner’s Representative
WELL AP

Question 46 of 78

46. Question

Which of the following strategies can be utilized for air sanitation as required by feature 23 Advanced Air Purification?

Carbon filters
Activated Carbon filters
Ultraviolet germicidal irradiation (UVGI)
Photocatalytic oxidation
Air Quality Maintenance

Question 47 of 78

47. Question

What is the humidity level required to meet Feature 16 Humidity Control?

Less than 60%
Between 30% and 50% at all times
Modeled humidity levels between 30% and 60% for 90% of all business hours
35%

Question 48 of 78

48. Question

Increased humidity levels can lead to which of the following? Choose 2

dryness and irritation of the skin
dryness and irritation of the eyes, throat and mucous membrane
Accumulation and growth of microbial pathogens and mold
Increased off-gassing: Emission of Formaldehyde

Question 49 of 78

49. Question

An increase in relative humidity of 35% can cause which of the following?

Formaldehyde emissions can increase of by a factor of 1.8–2.6
Formaldehyde emissions can increase of by a factor of 1–2
Dryness and irritation to occupants
Decrease in VOC emissions

Question 50 of 78

50. Question

Exceeding ASHRAE minimum fresh air supply rates by what amount is the requirement for earning Feature 15 Increased Ventilation?

30%
15%
20%
10%

Question 51 of 78

51. Question

The phthalates (plasticizers) DEHP, DBP, BBP, DINP, DIDP and DNOP are limited to 0.01% (100 ppm) in flooring and wall coverings according to which of the follow Features?

25 Toxic Material Reduction
04 VOC Reduction
26 Enhanced Material Safety
11 Fundamental Material Safety
07 Construction pollution management

Question 52 of 78

52. Question

Which of the following are high-touch surfaces that should be cleaned more frequently?

Handles, doorknobs, elevator buttons
Bookshelves, keyboards, printers
Light switches, light fixtures, and framed art
Countertops, handles, curtains

Question 53 of 78

53. Question

Which of the following strategies for pest control meet the requirements of Feature 22 Pest Control? Choose 2

Ensure that all outdoor garbage cans greater than 113 liters (30 gallons) have a lid.
Store all perishables in cabinets or drawers
All non-refrigerated perishable food, including pet food, is stored in sealed containers
Ensure that all indoor garbage cans greater than 113 liters (30 gallons) have a lid.
Place all indoor garbage cans greater than 113 liters (30 gallons) at least 7.5 m (25 ft) from doors to the exterior or operable windows

Question 54 of 78

54. Question

What hazardous material should the project abate if present in the building to earn WELL certification?

Lead
Asbestos
Urea formaldehyde
PCB
Mercury

Question 55 of 78

55. Question

The VOC content of what percentage (by cost) of the new furniture must meet ANSI/BIFMA e3-2011 Furniture Sustainability Standard?

100%
95%
75%
90%

Question 56 of 78

56. Question

Which of the following WELL Features requires that all doorknobs be coated in or comprised of a material that is abrasion-resistant, non-leaching and meets EPA testing requirements for antimicrobial activity.?

Feature 28 Cleanable Environment
Feature 06 Microbe and Mold Control
Feature 27 Antimicrobial Activity for Surfaces
Feature 25 Toxic Material Reduction

Question 57 of 78

57. Question

A WELL Assessor should conduct the radon test in which location in order to comply with for Feature 01 Air Quality Standards requirements?

In all spaces which were renovated
In the lowest occupied level
All regularly occupied spaces
In the lowest unoccupied level

Question 58 of 78

58. Question

Which of the following gases should be tested for its presence within the lowest occupied level of a building?

Carbon Monoxide
Radon
Nitrogen Dioxide
Ozone

Question 59 of 78

59. Question

Which of the following particle matter MUST be tested for its presence within a building pursuing WELL certification?

PM.₅ and PM₁₀
PM₂.₅ and PM₁₀
PM₁₀
Ozone
PM3.₅

Question 60 of 78

60. Question

Completing all requirements of one component in which of the following building rating systems is a compliance path for Feature 26 Enhanced Material Safety, Part 1: Precautionary Material Selection?

LEED v4
Green Globes
Living Building Challenge
LEED v3

Question 61 of 78

61. Question

What is the primary reason to introduce activated charcoal filters to the main air ducts of an existing building?

To reduce energy demand
To reduce VOCs in the indoor air
To sanitize air
To reduce HVAC noise from vibration

Question 62 of 78

62. Question

Which substance has 210 times the binding affinity for hemoglobin compared to oxygen, and is toxic to humans?

Carbon monoxide
Ozone
Chlorine
Methane

Question 63 of 78

63. Question

An existing commercial interior project decides to ban indoor smoking. What else should the project do to meet the requirements of Feature 02 Smoking Ban?

A smoking ban within 7.5 m [25 ft] (or the maximum extent allowable by local codes) of all entrances
Permit smoking outside the building
The project need not do anything additional
Post signage on the hazards of smoking

Question 64 of 78

64. Question

Which of the following is an acceptable way of verification for Part 2. Outdoor Smoking Ban?

Letter of Assurance from the Building Owner
Policy Document
Visual Inspection
Performance Test

Question 65 of 78

65. Question

In cleaning storage areas, which two items should be stored in separate bins from one another to meet Feature 29 Cleaning Equipment Part 2 Chemical Storage requirements?

Products with toxic chemicals and those without
Bleach and ammonia-based products
Green cleaning products from regular cleaning products
Cleaning products for floors and cleaning products for bathrooms

Question 66 of 78

66. Question

The presence of pests in indoor environments can have negative health implications for humans. Specifically, the bodies, feces, saliva of pests can trigger what reaction:

Cardiovascular disease
Asthma
Fatigue
Autoimmune disorders

Question 67 of 78

67. Question

A project has rack space and fan capacity in place for future carbon filters. In order to achieve Feature 05 Air Filtration, what else should the project do?

Install carbon filters.
Install MERV 12 filtration media.
Show that 95% of all hours in a calendar year, ambient outdoor PM10 and PM2.5 levels meet WELL standards from Feature 01 Air Quality Standards.
Provide documentation that filters have been continually maintained

Question 68 of 78

68. Question

A project is unable to utilize MERV 13 filters in the ventilation system to filter outdoor air. The team MUST now measure Ambient outdoor PM₁₀ and PM₂.₅ levels within ___________ of the building and demonstrate it’s below the limits set in the WELL Air Quality Standards Feature for ______of all hours .

3.2 km [2 mi] , 95%
1.6 km [1 mi], 95%
1.6 km [1 mi], 50%
1.6 km [1 mi], 75%

Question 69 of 78

69. Question

Which of the following is an acceptable documentation method to verify Air Filtration Maintenance to meet Feature 05 -Air Filtration requirements?

Operations Schedule
Policy Document
Commissioning Report
TAB report
Letter for Assurance from MEP designer

Question 70 of 78

70. Question

Which of the following would be the best selection for flooring in order to meet requirement for cleanability under feature 28 Cleanable Environment? Choose 2

Carpet
Carpet tiles glued to the surface
Ceramic tile
Cork
Vinyl Tile

Question 71 of 78

71. Question

Isolation of interior spaces containing sources of air pollution from adjacent spaces is a requirement for which of the following WELL Features?

01 Air Quality Standards
17 Direct Source Ventilation
12 Moisture Management
03 Ventilation Effectiveness
14 Air Infiltration Management

Question 72 of 78

72. Question

In addition to the narratives that describe how exterior and interior water from common sources are addressed, what other narrative should be submitted to meet the requirements of WELL Feature 12 Moisture Management?

Condensation, and materials selection and protection
Envelope Commissioning
Plumbing leaks
Historical Date on Relative Humidity in the area
Site drainage, and condensation

Question 73 of 78

73. Question

Which type of filter is required to filter particles under Feature 05, Air Filtration?

MERV 8
MERV 10
MERV 13
UVGI

Question 74 of 78

74. Question

Which of the following features fall under the scope of the Contractor?

Feature 13 – Air Flush and Feature 07 – Construction Pollution Management
Feature 13 – Air Flush and Feature 08 – Healthy Entrance
Feature 07 – Construction Pollution Management and Feature 08 – Healthy Entrance
Feature 13 – Air Flush and Feature 04 – VOC Reduction

Question 75 of 78

75. Question

Which of the following features within the Air concept specifically address PM10? (Choose 3)

Operable Windows
Increased Ventilation
Air Filtration
Air Quality Standards
Ventilation effectiveness
Microbe and mold control

Question 76 of 78

76. Question

Exposure to which of the following may lead to mesothelioma

Lead
Asbestos
Glyphosate
Atrazine

Question 77 of 78

77. Question

What filtration type should the building have in the outdoor ventilation system to capture high levels of fine particulate matter in the ambient air?

MERV 13
MERV 8
Carbon filters
UVGI

Question 78 of 78

78. Question

Feature 05, Air Filtration requires which of the following documentation types?

A letter of assurance from the MEP engineer
A letter of assurance from Architect and spot check from contractor
A letter of assurance from MEP engineer and spot check from contractor
A letter of assurance from the Owner

Module 2

Module 2

Module 2

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question

11. Question

12. Question

13. Question

14. Question

15. Question

16. Question

17. Question

18. Question

19. Question

20. Question

21. Question

22. Question

23. Question

24. Question

25. Question

26. Question

27. Question

28. Question

29. Question

30. Question

31. Question

32. Question

33. Question

34. Question

35. Question

36. Question

37. Question

38. Question

39. Question

40. Question

41. Question

42. Question

43. Question

44. Question

45. Question

46. Question

47. Question

48. Question

49. Question

50. Question

51. Question

52. Question

53. Question

54. Question

55. Question

56. Question

57. Question

58. Question

59. Question

60. Question

61. Question

62. Question

63. Question

64. Question

65. Question

66. Question

67. Question

68. Question

69. Question

70. Question

71. Question

72. Question