Select the incorrect statement

Options

A. Microbes can cause diseases in animals and plants
B. All microbes are harmful
C. Most of the microbes are useful to human beings
D. Microbes cause a large number of diseases in human beings.

Answer

To solve the question "Select the incorrect statement," we need to analyze each statement provided about microbes:

1. **Microbes can cause diseases in animals and plants.**
- This statement is true. Many microbes, such as bacteria and viruses, are known to cause diseases in both animals and plants.

2. **All microbes are harmful.**
- This statement is incorrect. While some microbes can cause diseases, many microbes are beneficial and play essential roles in processes like digestion, fermentation, and nitrogen fixation.

3. **Most of the microbes are useful to human beings.**
- This statement is generally true. A significant number of microbes, including certain bacteria and fungi, are beneficial to humans, aiding in digestion, producing antibiotics, and contributing to various biotechnological applications.

4. **Microbes cause a large number of diseases in human beings.**
- This statement is true. Many diseases in humans are caused by pathogenic microbes, including bacteria, viruses, and fungi.

Based on the analysis of these statements, the incorrect statement is:

**Answer: All microbes are harmful.**

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