6 questions Basic

ECADEMY test

92 - Understanding our groundwater

This course test contains 6 questions and can be retaken at any time.

You must answer all questions correctly to pass the test and complete the course.

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Question 1 of 6 Basic

Initially, water is driven underground by gravity. What is the main driver after a certain depth?

Question 2 of 6 Basic

What do we call the visible area from which the aquifer gets new water over time?

Question 4 of 6 Basic

Can groundwater be over a thousand years old?

Question 5 of 6 Basic

Which conditions give water the best cleaning effect on the way to becoming groundwater?

Question 6 of 6 Basic

In the example given in the course, how many years will it take potentially for the effects of surface pollution to show up in drinking water?

Question 6 of 6 Basic

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Correct
Q: Initially, water is driven underground by gravity. What is the main driver after a certain depth?
A: The main driver becomes pressure
Correct
Q: What do we call the visible area from which the aquifer gets new water over time?
A: The recharge area
Correct
Q: Why do people favour groundwater to surface water sources?
A: The cleaning effect from filtration through the subsurface makes groundwater much safer
Correct
Q: Can groundwater be over a thousand years old?
A: Yes
Correct
Q: Which conditions give water the best cleaning effect on the way to becoming groundwater?
A: Slow travel time through the subsurface
Correct
Q: In the example given in the course, how many years will it take potentially for the effects of surface pollution to show up in drinking water?
A: 40 to 50 years