

P2U2 04Consequences of Global Climate Change on the Hydrosphere
Flashcard
•
Geography
•
12th Grade
•
Practice Problem
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Medium
Van Zyl
Used 1+ times
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the hydrosphere?
Back
The hydrosphere encompasses all the waters on the Earth's surface, including lakes, seas, oceans, and sometimes water over the Earth's surface like clouds.
2.
FLASHCARD QUESTION
Front
What percentage of Earth's water is saltwater?
Back
About 97% of Earth's water is saltwater in the oceans.
3.
FLASHCARD QUESTION
Front
What percentage of Earth's water is freshwater?
Back
3% of Earth's water is freshwater, mostly stored as ice in glaciers.
4.
FLASHCARD QUESTION
Front
How does climate change affect the balance between water stored in oceans and ice?
Back
Increasing global temperatures cause ice in mountain glaciers and ice caps to melt, adding water to the oceans and causing sea levels to rise.
5.
FLASHCARD QUESTION
Front
What happens to ocean levels during colder periods like Ice Ages?
Back
Precipitation falls as snow and remains locked up as ice, leading to a drop in ocean levels.
6.
FLASHCARD QUESTION
Front
How much have sea levels risen since the Industrial Revolution?
Back
Sea levels have risen by approximately 20 cm since the Industrial Revolution.
7.
FLASHCARD QUESTION
Front
What is the projected sea level rise by 2100?
Back
Ocean levels may rise a further 1 meter by 2100 due to continued global temperature increases.
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