1a. Water & Carbon Support Life

Plants need water for...

• Evapotranspiration, Decomposition, Ablation

• Photosynthesis, Transpiration Respiration,

• Respiration, Decomposition, Combustion

• Photosynthesis, Decomposition, Transpiration

Water makes up what % of living organisms?

• 65–95%

• 25-50%

• 75-100%

• 55-75%

Water vapour is a greenhouse gas

• True

• False

Carbon is an essential economic recourse because

• It helps to regulate global temperatures

• It is contained in fossil fuels e.g. coal and gas

• It is a building block for DNA

• It is stored within the lithosphere

What is the cryosphere?

• Gases surrounding the earth

• Water on the earths surface e.g. oceans

• Spaces occupied by living things on earth

• Frozen water on earth e.g. glaciers

What is the lithosphere?

• On dry land

• Water on the earths surface e.g. oceans

• Spaces occupied by living things on earth

• Rock layer above the earths mantle

Where is 99% of the earths carbon stored?

• Atmosphere

• Sedimentary Rocks

• Oceans

• Biosphere

Which is the largest water store on earth?

• Atmosphere

• Oceans

• Soils

• Biosphere

In a closed system e.g. global carbon cycle, no new matter can enter the system.

• True

• False

Open systems tend to be on a smaller scale (e.g. a river basin) and new matter can enter the system.

• True

• False