Water distribution and stores3.1.1.2

Question 1

Earths 5 subsystems

Answer 1

Lithosphere
Cryosurgery
Atmosphere 
Biosphere 
Hydrosphere

Question 2

Global distribution of water

Answer 2

97% is ocean
3 % is freshwater

Of 3% - 79% is locked in ice caps & glaciers
Of 3% - 1% accessible surface water
Of 3% - 20% is groundwater

0.4 % of all water is in atmosphere

Question 3

Oceanic water

Answer 3

Covers 72% of earths surface
Salty so can stay liquid below 0
pH around 8.14 fallen from 8.25 in 250 years due to increased CO2

Question 4

5 types of cryospheric water and examples

Answer 4

Sea ice - Ross ice shelf

Ice caps - Iceland ice cap

Ice sheets - Greenland ice sheet

Alpine glaciers - Mer de Glacé, France

Permafrost - Alaska north slope

Question 5

What is sea ice

Answer 5

When ocean water cooled to below freezing, doesn’t cause sea rise when melts as made of same water. Only when it pushes water

Question 6

What are ice sheets

Answer 6

Antarctica and Greenland. Ice sheets on land

Question 7

What are alpine glaciers

Answer 7

Thick masses of ice on deep valleys

Question 8

What is permafrost

Answer 8

Found that remains below 0 for 2 consecutive years.

Can contain soil and organic materials so when it melts releases CO2 and methane - affecting climate

Question 9

What are the types of terrestrial water and what are they

Answer 9

Surface - free flowing river or lakes

Ground - water collected underground i pore spaces of rock

Soil - water held together with air in saturated layers of soil

Biological - water stores in all biomass

Question 10

Atmospheric water

Answer 10

Exists in all 3 states
Absorbs, reflects and scatters incoming solar radiation
Amount jheld in air sends on temperature - cold air can’t hold as much