Question

how do ecosystems respond to natural disasters such as fires and floods? a. they become wastelands where nothing can live. b. they return to their pre - disaster state within one or two years. c. they are transformed into ecosystems with all new organisms. d. they recover in stages, gradually returning to the original system

Explanation:

To determine the correct answer, we analyze each option:

• Option A: Ecosystems don’t become wastelands with nothing living; they undergo recovery, so A is incorrect.
• Option B: Ecosystem recovery (like succession) takes longer than 1 - 2 years, so B is incorrect.
• Option C: Recovery involves regrowth of original or similar organisms, not entirely new ones, so C is incorrect.
• Option D: Ecosystems recover in stages (ecological succession), gradually returning to a stable state, which matches ecological principles.

Answer:

D. They recover in stages, gradually returning to the original system