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?
When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
Initially, water is driven underground by gravity. What is the main driver after a certain depth?
What do we call the water-bearing layer underground?
Test results
Congratulations. You have passed the test and completed the 92 - Understanding our groundwater
Achieved badges:
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: 4 to 5 years
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: Over a thousand years
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
Q: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
A: Pollutants in the water
Q: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
A: Nothing - this process happens on the surface
Q: When bacteria in the soil interacts with organic compounds in the water, what are they broken down into?
A: Pure water and CO2
Q: Can groundwater be over a thousand years old?
A: No
Q: Can groundwater be over a thousand years old?
A: Yes
Q: Initially, water is driven underground by gravity. What is the main driver after a certain depth?
A: The main driver becomes pressure
Q: Initially, water is driven underground by gravity. What is the main driver after a certain depth?
A: The main driver is still gravity
Q: Initially, water is driven underground by gravity. What is the main driver after a certain depth?
A: Both pressure and gravity, depending on conditions
Q: Can technology help us find groundwater without digging bore holes?
A: No
Q: Can technology help us find groundwater without digging bore holes?
A: Yes
Q: What do we call the water-bearing layer underground?
A: An aquifer
Q: What do we call the water-bearing layer underground?
A: A water tank
Q: What do we call the water-bearing layer underground?
A: A well