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

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

Question 2 of 6 Basic

Can iron be precipitated from water flowing down through the subsurface?

Question 4 of 6 Basic

Can you spread the load on an aquifer by extracting from more wells distributed over a wider area?

Question 5 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

When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?

Question 6 of 6 Basic

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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: Can iron be precipitated from water flowing down through the subsurface?
A: Yes
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 you spread the load on an aquifer by extracting from more wells distributed over a wider area?
A: Yes
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
Correct
Q: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
A: Pure water and CO2