Feedback between the two cycles

Question 1

Give an example of positive feedback in the water cycle.

Answer 1

Temps increase, evaporation inc, more water vapour in atmosphere, greenhouse gas effect increases – Temps increase.

Question 2

Negative feedback water cycle.

Answer 2

Temps rise, evaporation inc, more water vapour in atmosphere, more clouds form, more cloud cover, reflecting solar energy, temps fall.

Question 3

+ feedback carbon cycle?

Answer 3

Temps rise, plant respiration increases, more CO2 in atmosphere, greenhouse effect increases - temps rise.

Question 4

• Feedback carbon cycle?

Answer 4

CO2 in atmosphere increases, more plant growth, more CO2 stored by plants, less co2 in atmosphere.