Assertion : the disadvantages of chemical pesticides can be overcome by the use of biopesticides.
Reason: Biopesticides are the harmless pesticides of biological orgin which are used to cotrol weeds and pests without causing any significant damage .

Options

A. If both Assertion and Reason are true and the reason is the correct explanation of the assertion , then mark (1) .
B. If both Assertion and Reason are true but the reason is not the correct explanation of the assertion , then mark (2).
C. If assertion is true but Reason is false , then false , then mark(3).
D. If both assertion is true Reason are false , then Mark (4).

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that the disadvantages of chemical pesticides can be overcome by the use of biopesticides. This implies that biopesticides are a viable alternative to chemical pesticides, which have several negative impacts on the environment and human health.

2. **Identifying the Disadvantages of Chemical Pesticides**: Chemical pesticides, such as DDT, are known to cause environmental issues like soil and water pollution. They can lead to eutrophication, which is the excessive growth of algae in water bodies due to nutrient runoff, resulting in the death of aquatic life due to decreased oxygen levels.

3. **Understanding Biopesticides**: Biopesticides are derived from natural materials like plants, bacteria, and minerals. They are designed to control pests and weeds without the harmful side effects associated with chemical pesticides. Examples include canola oil and baking soda.

4. **Evaluating the Reason**: The reason provided states that biopesticides are harmless and of biological origin, which allows them to control pests without causing significant damage to the environment. This aligns with the assertion that they can mitigate the disadvantages of chemical pesticides.

5. **Conclusion**: Both the assertion and reason are true. The reason correctly explains why the assertion holds true, as biopesticides offer a sustainable and environmentally friendly alternative to chemical pesticides.

**Final Answer**: Both the assertion and reason are true, and the reason is the correct explanation of the assertion.

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