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Edexcel IGCSE Biology 4.10 Carbon Cycle Questions

Practise carbon cycle questions on CO2 movement, named processes, decomposers and investigations into factors affecting decomposition rate.

Syllabus
First assessment 2019
Course
Biology 4BI1

Exam points

  • match labelled carbon cycle arrows to combustion, respiration, feeding or decomposition
  • explain CO2 changes using photosynthesis, respiration, deforestation and carbon storage
  • design decomposition investigations with a changed factor, controls, repeats and measurements

Edexcel IGCSE Biology 4.10 Carbon Cycle Questions question 1

[Maximum number: 3]

The diagram shows a cycle found in ecosystems.

Figure for Question Edexcel IGCSE Biology 4.10 Carbon Cycle Questions question 1 — Edexcel IGCSE Biology

Question (a)

(a)

Give the name of the cycle.

[ 1 ]

Question (b)

(b)

Which process is represented by the letter W ?

A

combustion

B

decomposition

C

feeding

D

respiration

[ 1 ]

Question (c)

(c)

Which process is represented by the letter X ?

A

combustion

B

decomposition

C

feeding

D

respiration

[ 1 ]
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