Question 1 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 2 of 6
Basic

The rainwater which becomes new groundwater is called what?

Question 3 of 6
Basic

Can groundwater be over a thousand years old?

Question 4 of 6
Basic

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

Question 5 of 6
Basic

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

Question 6 of 6
Basic

What happens if groundwater is depleted too fast?

Question 6 of 6
Basic

Happy with your answers?

Submit your current answers and get the final test result.

Test results

Congratulations. You have passed the test and completed the 92 - Understanding our groundwater
Sorry. You did not pass the 92 - Understanding our groundwater test this time
Achieved badges:
How would you rate this course?
1: 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?
4 to 5 years
1: 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?
Over a thousand years
1: 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?
40 to 50 years
2: The rainwater which becomes new groundwater is called what?
Discharge
You can find the answer here >
2: The rainwater which becomes new groundwater is called what?
Replenish
You can find the answer here >
2: The rainwater which becomes new groundwater is called what?
Recharge
3: Can groundwater be over a thousand years old?
No
You can find the answer here >
3: Can groundwater be over a thousand years old?
Yes
4: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
Pollutants in the water
You can find the answer here >
4: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
Nothing - this process happens on the surface
You can find the answer here >
4: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
Pure water and CO2
5: Can iron be precipitated from water flowing down through the subsurface?
Yes
5: Can iron be precipitated from water flowing down through the subsurface?
No
You can find the answer here >
6: What happens if groundwater is depleted too fast?
The land subsides and a shallow lake forms
You can find the answer here >
6: What happens if groundwater is depleted too fast?
The land subsides and dries out
6: What happens if groundwater is depleted too fast?
Water pressure drops, but in principle the aquifer is always there
You can find the answer here >