Biopesticides are

Options

A. The chemicls which are used to destroy the pests
B. The living organisms or their products which are used for the pest control
C. The organisms which destroy the crops
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Biopesticides":**
- The term "biopesticides" can be broken down into two parts: "bio" and "pesticides."
- "Bio" refers to living organisms, while "pesticides" are substances used to kill pests.

2. **Analyzing the Options:**
- **Option A:** "The chemicals which are used to destroy the pest."
- This option refers to synthetic chemicals like insecticides and pesticides, which do not fit the definition of biopesticides.

- **Option B:** "The living organism or their products which are used for pest control."
- This option aligns with the definition of biopesticides, as they are derived from natural organisms and can include bacteria, fungi, or plant extracts used to control pest populations.

- **Option C:** "The organism which destroy the crops."
- This option describes pests themselves, not biopesticides. Pests are harmful organisms that damage crops, whereas biopesticides are used to control these pests.

- **Option D:** "None of the above."
- This option is incorrect because option B correctly defines biopesticides.

3. **Identifying the Correct Answer:**
- After analyzing all options, the correct answer is **Option B**: "The living organism or their products which are used for pest control."

**Final Answer:**
Biopesticides are the living organisms or their products which are used for pest control.

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