Question:
Which of the following is INCORRECT about Primary and Secondary ecological successions?
Which of the following is INCORRECT about Primary and Secondary ecological successions?
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Shortcut:
Primary = No soil, slow
Secondary = Soil present, fast
Secondary = Soil present, fast
Updated On: May 8, 2026
- Primary succession occurs where no living organisms were present before.
- Primary succession is slow.
- Secondary succession is quicker.
- Soil is already present where primary succession takes place.
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The Correct Option is D
Solution and Explanation
Concept: Ecological succession is the gradual process of change in species composition in an area over time.
• Primary succession:
• Occurs on bare surfaces (no soil, no life)
• Very slow process
• Secondary succession:
• Occurs in areas where soil is already present
• Faster due to existing nutrients and seeds
Step 1: Analyze each statement.
• (A) Correct — no prior life in primary succession
• (B) Correct — primary succession is slow
• (C) Correct — secondary succession is faster
• (D) Incorrect — soil is NOT present in primary succession
Step 2: Conclusion.
Statement (D) is incorrect. Final Answer: Option (D)
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