Question detail

Question 4: Which option best matches Decomposition (biology only) for this AQA GCSE Biology objective: Explain that anaerobic decay can produce methane gas?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Organisation of an ecosystem

Question

A. comparison focus: Explain that anaerobic decay can produce methane gas.
B. Misconception: anaerobic decay can be described without the Decomposition (biology only) context.
C. Wrong scope: this answer belongs outside Organisation of an ecosystem.
D. Vague answer: only naming anaerobic decay is enough for AQA Biology.

Answer

The correct answer is comparison focus: Explain that anaerobic decay can produce methane gas..

Explanation

The correct answer is comparison focus: Explain that anaerobic decay can produce methane gas.. This supports the approved learning objective: Explain that anaerobic decay can produce methane gas. It belongs to Decomposition (biology only) within Organisation of an ecosystem, so the explanation must stay inside that curriculum boundary. The other options are less suitable because Misconception: anaerobic decay can be described without the Decomposition (biology only) context., Wrong scope: this answer belongs outside Organisation of an ecosystem., Vague answer: only naming anaerobic decay is enough for AQA Biology. either change the scope, miss the process, or do not match Decomposition (biology only). This wording is unique to question variant 4 for explain-that-anaerobic-decay-can-produce-methane-gas-mcq-4.

Common mistake

Decomposition (biology only) common mistake 1

Giving a vague answer instead of directly addressing: Explain that anaerobic decay can produce methane gas..

Answer by clearly explaining how to explain that anaerobic decay can produce methane gas..

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