Support Systems KQ1 The Carbon cycle Flashcards
1
Q
Why is the carbon cycle important to life?
A
- life is built from carbon macromolecules
- Methane and Carbon Dioxide warm the surface of the Earth through the greenhouse effect
2
Q
Why is the carbon cycle important economically?
A
- used as an economic resource (e.g oil, diamonds)
- oil used in the manufacturing of many goods (e.g. plastic)
3
Q
What is gross primary production?
A
The total amount of carbon fixed by plants in a given amount of time
4
Q
What are typical units for gross primary production?
A
g/m squared/year
5
Q
What is net primary production?
A
Gross primary production- plant respiration
6
Q
What is the largest store of Carbon?
A
Sedimentary rock
7
Q
What is the smallest store of Carbon?
A
Terrestrial biosphere
