C2 4.5 The Carbon Cycle Flashcards Preview

SHHS - Science - C2.4 The Earth - Year 8 > C2 4.5 The Carbon Cycle > Flashcards

Flashcards in C2 4.5 The Carbon Cycle Deck (8)
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1

Does carbon dioxide enter the atmosphere by respiration or photosynthesis?

Respiration

2

Does carbon dioxide leave the atmosphere by respiration or photosynthesis?

Photosynthesis

3

Name two processes which add carbon dioxide into the atmosphere

Respiration and combustion

4

Name two processes which remove carbon dioxide from the atmosphere

Photosynthesis and dissolving in oceans

5

When land-based animals, plants and soil decompose in the absence of oxygen, what is eventually formed?

Fossil fuels

6

4 in 10,000 particles of air are carbon dioxide. What is this as a percentage?

0.04%

7

Name six carbon stores

The atmosphere, oceans, sedimentary rocks, fossil fuels, plants and animals, soil

8

How does carbon enter sedimentary rocks?

When sea shells form the rock