4.a. The water and carbon cycles are linked and independant

Question 1

Interlinkages

Atmosphere

Answer 1

Atmospheric CO2 has a greenhouse effect. Co2 plays a vital role in phtosynthesis by terrestrail plants. Plants extract water from the soil and trasnpire it into the atmosphere. When water is evaporated from the oceans into the atmosphere, co2 is also exchanged between the two stores.

Question 2

Interlinkages

Oceans

Answer 2

Oceanic acidity increaes when exchanges of co2 are not in balance. the solubility of co2 increaes with lower ssts.atmpsheric temperatures increase ssts and the thermasl expansion of oceans;meltinf og ice sheets and glaciers, sea level.

Question 3

Interlinkages

vegetation and soil

Answer 3

Water availability influences photosynthesis, NPP, inputs of organic matter into soils. Water storage capacity increases with organic matter. Temperatures and rainfall affect the flux of co2 into the atmosphere.

Question 4

Interlinkages

Crysphere

Answer 4

CO2 in the Atmosphere determines intensity of greenhouse effect and therefore melting of nice sheets and glaciers, sea ice and permafrost. Melting exposes land and sea surfaces which absorb more solar radiation. Melting of permafrost increases decomposition of exposed organic material, co2 to atmosphere.

Question 5

How is climate change impacting the water cycle?

Answer 5

• Increased evaporation, water in atmosphere.
• More vapour - feedback effect (pos/neg)
• More extreme weather events because more energy in the atmosphere.
• melting og glaciers happens more rapidly, water storage in the cryrosphee shrinks,

Question 5

How is climate change impacting the water cycle?

Answer 5

• Increased evaporation, water in atmosphere.
• More vapour - feedback effect (pos/neg)
• More extreme weather events because more energy in the atmosphere.
• melting og glaciers happens more rapidly, water storage in the cryrosphee shrinks,

Question 6

How is climate change impacting the water cycle?

Answer 6

• Increased evaporation, water in atmosphere.
• More vapour - feedback effect (pos/neg)
• More extreme weather events because more energy in the atmosphere.
• melting og glaciers happens more rapidly, water storage in the cryrosphere shrinks, water is transferred into the oceans and atmosphere.