Stores of water Flashcards

1
Q

The Hydrosphere is the layer of water at or near the Earths surface. (All liquid + frozen water)
What percentage of total water on Earth is oceanwater?

A

97.5%

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2
Q

How much of the total water on Earth is freshwater?
And how much is saltwater?

A

Freshwater - 2.5%
Saltwater - 97.5%

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3
Q

Of the 2.5% saltwater (out of total water), how much is in the Cryosphere?

A

79%

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4
Q

Of the 2.5% saltwater (out of total water), how much is in the Lithosphere?

A

20%

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5
Q

The remaining 1% of Freshwater is distributed in?

A

Atmosphere (water vapour) 8%
Biosphere 1%
Lakes 52%
Rivers 1%
Soil moisture 38%

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6
Q

What are the two cryospheric processes?

A

Accumulation
Ablation

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7
Q

Explain;
Accumulation
Ablation

A

Accumulation - snowfall contributes to to glaciers getting larger.
Ablation - Melting of glaciers, making them smaller.

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8
Q

What was the most recent period of Accumulation?

A

Pleistocene (2.6 million years ago)

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