Question

Natural ecosystem is —

• A. Flower pots
• B. Aquarium
• C. Farm
• D. Forest

Hint:

Natural ecosystems maintain ecological balance on their own, while artificial ones require human care and control.

Answer 1

The Correct Option is D

Step 1: Understanding ecosystems.
An ecosystem includes all living organisms (biotic components) and their interactions with the non-living environment (abiotic components) such as air, water, and soil.
Step 2: Distinguishing between natural and artificial ecosystems.
- Natural ecosystems develop on their own without human interference (e.g., forests, ponds, lakes).
- Artificial ecosystems are created and maintained by humans (e.g., aquariums, crop fields).
Step 3: Analyzing options.
- (A) Flower pots → Artificial ecosystem.
- (B) Aquarium → Artificial ecosystem.
- (C) Farm → Artificial ecosystem (man-made).
- (D) Forest → Natural ecosystem.
Step 4: Conclusion.
Hence, the correct answer is Forest, as it is a natural ecosystem.