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

Fast travel time through the subsurface

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

Slow travel time through the subsurface

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

There is no cleaning effect through the subsurface

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

The main driver becomes pressure

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

The main driver is still gravity

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

Both pressure and gravity, depending on conditions

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

Pollutants in the water

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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

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

Yes

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

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6: Can technology help us find groundwater without digging bore holes?

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6: Can technology help us find groundwater without digging bore holes?

Yes

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

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

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?

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

Can technology help us find groundwater without digging bore holes?

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