Find the incorrect statement from the following .
A. Tropical rain forests cover around 6% of the earth's land surface.
B. The Amazonian rain forest is being cut and cleared for soya bean cultivation or for conversion to grasslands for raising beef cattle.
C. Animal with migratory habits are badly affected by habitat loss and fragmentation.
D. Mammals and birds require small territories.

Options

A. A and B only
B. A and D only
C. D only
D. B and C only

Answer

To solve the question of identifying the incorrect statement from the provided options, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement A**: "Tropical rain forests cover around 6% of the earth's land surface."
- **Analysis**: This statement is true. Tropical rainforests do indeed cover approximately 6% of the Earth's land surface.

2. **Statement B**: "The Amazonian rain forest is being cut and cleared for soya bean cultivation or for conversion to grasslands for raising beef cattle."
- **Analysis**: This statement is also true. The Amazon rainforest is significantly affected by deforestation for agricultural purposes, including soya bean cultivation and cattle ranching.

3. **Statement C**: "Animals with migratory habits are badly affected by habitat loss and fragmentation."
- **Analysis**: This statement is true as well. Migratory animals are indeed adversely impacted by habitat loss and fragmentation, which disrupts their migratory routes and breeding grounds.

4. **Statement D**: "Mammals and birds require small territories."
- **Analysis**: This statement is incorrect. Many mammals and birds require large territories for their survival, foraging, and breeding. The size of the territory needed can vary widely among species, but generally, larger territories are necessary for many wildlife species.

### Conclusion:
After analyzing all the statements, the incorrect statement is **Statement D**: "Mammals and birds require small territories."

### Final Answer:
The incorrect statement is **D**.

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