# G7Int 2.13 Exploring and Evaluating Evidence

## Quiz by Janette Salinas

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25 questions
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• Q1
What did a study conclude about Americans' water usage?
Americans use twice the amount of water they think they do
Americans use three times the amount of water they think they do
Americans use half the amount of water they think they do
Americans use the exact amount of water they think they do
30s
• Q2
What is the main water usage that most Americans are clueless about?
Outdoor irrigation
Drinking water
Showering
Toilet flushing
30s
• Q3
What is the greatest water saver after installing a water-efficient toilet?
A rainwater harvesting system
A high-efficiency clothes washer
A dishwasher
A low-flow showerhead
30s
• Q4
What percentage of water used within the average household is attributed to toilet flushing?
10%
28%
50%
70%
30s
• Q5
How much water does a low-flow toilet use per flush?
1.6 gallons or less
3.5 gallons
2 gallons
5 gallons
30s
• Q6
What did almost half of the survey participants get wrong about water conservation?
Washing clothes less frequently would save the most water
Turning off the tap while brushing teeth would save the most water
Taking fewer or shorter showers would save the most water
Using a water-efficient dishwasher would save the most water
30s
• Q7
How much water can you save by decreasing the length of a shower from 8 minutes to 5 minutes?
Roughly 5% of your total water use in the home
Roughly 20% of your total water use in the home
Roughly 50% of your total water use in the home
Roughly 8% of your total water use in the home
30s
• Q8
How much clean water do humans require each day to meet basic needs?
100 gallons
50 gallons
200 gallons
13 gallons
30s
• Q9
How much water is required to make a pound of coffee?
1,000 gallons
2,264 gallons
100 gallons
500 gallons
30s
• Q10
What does the author say about water compared to power?
Water and power are equally familiar
Water is much more familiar
Power is much more familiar
Power is rarely thought about
30s
• Q11
People underestimate how much water they use. Which of the following sentences has a similar meaning to the sentence above?
People estimate how much water they use.
People underestimate how much water they save.
People overestimate how much water they save.
People estimate how much water they save.
30s
• Q12
Most Americans assume that water is both reliable and _________.
vastly
variable
plentiful
inconsistent
30s
• Q13
What do many scientists believe to be the cause of too much salt in our groundwater?
increase
climate change
inconsistent rainfall
water supply
30s
• Q14
Why do we underestimate how much water toilets use?
because we do not use them much
because we use them often
because we use them too much
because we use the wrong kind
30s
• Q15

Which of the following paragraphs contains information about the methodology of study?

Paragraph 1

Paragraph 2

Paragraph 4

Paragraph 3

30s

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