- Grundfos Hong Kong
- Learn
- Ecademy
- All courses
- 92 - Understanding our grou...
- Test your knowledge
Question 1 of 6
Basic
Is climate change a significant problem for our groundwater?
Question 2 of 6
Basic
What do we call the water-bearing layer underground?
Question 3 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 4 of 6
Basic
Can iron be precipitated from water flowing down through the subsurface?
Question 5 of 6
Basic
Why do people favour groundwater to surface water sources?
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
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: Is climate change a significant problem for our groundwater?
No
1: Is climate change a significant problem for our groundwater?
Yes
1: Is climate change a significant problem for our groundwater?
We won't know for 40 to 50 years
2: What do we call the water-bearing layer underground?
An aquifer
2: What do we call the water-bearing layer underground?
A water tank
You can find the answer here >
2: What do we call the water-bearing layer underground?
3: 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
3: 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
3: 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
4: Can iron be precipitated from water flowing down through the subsurface?
Yes
4: Can iron be precipitated from water flowing down through the subsurface?
5: Why do people favour groundwater to surface water sources?
Access to surface water is often limited for many due to land ownership
You can find the answer here >
5: Why do people favour groundwater to surface water sources?
They don't - lakes and rivers provide a much more reliable supply
You can find the answer here >
5: Why do people favour groundwater to surface water sources?
The cleaning effect from filtration through the subsurface makes groundwater much safer
6: 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 >
6: 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 >
6: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
Pure water and CO2