Examples Of Feedback

Question 1

Positive feedback from temp increase (4)

Answer 1

Temp increases = ice melts = less of suns energy reflected = more energy absorbed by earth

Question 2

Negative feedback = CO2 emitted (4)

Answer 2

CO2 emitted
Plant grows
Plants remove and store more CO2 = photosynthesis
Amount of CO2 in atmosphere reduces

Question 3

Positive feedback - global warming (4)

Answer 3

Temp increases
Evaporation increases
Water vapour increases
GHG effect increases

Question 4

Negative feedback = stopping global warming (5)

Answer 4

Temp increases
Evaporation increases
Water vapour increases
Cloud coverage increased = reflects suns rays
Temp reduced

Question 5

Positive feedback = global warming = carbon cycle (4)

Answer 5

Temp increases
Plant respiration rate increases
Amount co2 in atmosphere increases
Green house effect increases

Question 6

Negative feedback = global warming = carbon cycle (4)

Answer 6

CO2 in atmosphere increases
Plant growth increases
Plants remove + store more co2
Amount of co2 in atmosphere reduced