Movement of Groundwater

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What makes sand different from clay in terms of water absorption?

Sand is both porous and permeable. (correct)

Sand is not permeable but is highly porous.

Sand is not porous but is highly permeable.

Sand is neither porous nor permeable.

How does limestone differ from clay and sand in terms of water absorption?

Limestone is not permeable but very porous.

Limestone is very permeable but not very porous. (correct)

Limestone is both permeable and very porous.

Limestone is neither permeable nor porous.

What happens to limestone as water is absorbed into it?

It becomes less porous.

It becomes harder.

It becomes less permeable.

It becomes more porous. (correct)

Why are most of the world's aquifers made of limestone?

Because limestone becomes more porous as it absorbs water. Signup and view all the answers

What causes groundwater movement?

Gravity Signup and view all the answers

What determines the direction of groundwater flow according to the text?

The elevation of the water table Signup and view all the answers

How does groundwater move through the soil according to the text?

By flowing through open pores in the soil Signup and view all the answers

What makes groundwater movement slower than surface water movement according to the text?

The hydraulic gradient Signup and view all the answers

How does groundwater compare to surface water in terms of movement through soil pores?

Groundwater moves through open pores while surface water doesn't Signup and view all the answers

What property of sand allows it to absorb water quickly?

Its high porosity Signup and view all the answers

How does limestone differ from sand in terms of porosity and permeability?

Limestone is porous but not permeable Signup and view all the answers

Why does groundwater move from high to low elevation?

Due to the hydraulic gradient Signup and view all the answers

How does the movement of groundwater differ from surface water movement?

Surface water moves through open pores in the soil Signup and view all the answers

What effect does water absorption have on limestone according to the text?

It creates new holes, making it more porous Signup and view all the answers

Which sediment is described as having a high water-holding capacity but taking a long time to absorb water?

Clay Signup and view all the answers

What makes sand different from clay and limestone in terms of water absorption?

Sand has high porosity and high permeability Signup and view all the answers

What characteristic of groundwater movement sets it apart from surface water movement?

Moving through open pores Signup and view all the answers

What factor determines the direction of groundwater flow in the text?

Water table elevation Signup and view all the answers

Why is limestone considered a tricky sediment in terms of water absorption according to the text?

It absorbs water quickly but has low capacity Signup and view all the answers