Difficulty: Easy
Correct Answer: (b), (d), (c), (a)
Explanation:
Introduction / Context:
This sequence follows raw resource to finished product: forest ecosystems contain trees; trees provide wood; wood is processed into furniture.
Given Data / Assumptions:
Concept / Approach:
Order the chain by transformation steps from environment to product.
Step-by-Step Solution:
1) Forest (b).2) Tree (d).3) Wood (c).4) Furniture (a).
Verification / Alternative check:
Manufacturing flow sheets for timber industries confirm this linear progression.
Why Other Options Are Wrong:
Any order putting furniture before wood or tree is impossible; repeated/erroneous elements (like option d) are invalid.
Common Pitfalls:
Confusing forest and tree as equivalents; the forest is an ecosystem, not the harvested unit.
Final Answer:
(b), (d), (c), (a)
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