Question detail
What is nutrient cycling in an ecosystem?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Section B: The living world
Question
- A. The movement of nutrients from producers to consumers
- B. The process of decomposers breaking down organic matter
- C. The transfer of energy through food chains
- D. The recycling of water in the environment
Answer
The correct answer is The process of decomposers breaking down organic matter.
Explanation
The correct option is The process of decomposers breaking down organic matter. The process of decomposers breaking down organic matter is correct because it directly matches the approved learning objective to interpret food chains, food webs and nutrient cycling within an ecosystem. This belongs to Ecosystems within Section B: The living world, so the answer must stay focused on the geographical process, evidence, place, or impact named by the curriculum. The other options are weaker because they move away from Ecosystems, reverse the geographical relationship, or make a broader claim than the objective supports.
Common mistake
Misunderstanding Food Webs
Students often confuse food chains with food webs, thinking they are the same.
Emphasize that a food chain is a linear sequence of organisms, while a food web consists of multiple interconnected food chains showing the complex feeding relationships in an ecosystem.
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