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The material of biological origin, which...

The material of biological origin, which is used to maintain and improve soil fertility is
(a) Bio pesticide
(b) Bionutrient
(c) Chemical fertilizers
(d) Green manure

A

Bio pesticide

B

Bionutrient

C

Chenical fertilizers

D

Green manure

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to identify which option refers to a material of biological origin that is used to maintain and improve soil fertility. Let's analyze each option step by step: 1. **Option A: Bio pesticide** - Bio pesticides are derived from natural materials and are used to control pests. While they are of biological origin, their primary purpose is pest management, not soil fertility improvement. Therefore, this option is not correct. 2. **Option B: Bionutrient** - Bionutrients are substances that promote plant growth and health, often derived from biological sources. However, they do not specifically focus on improving soil fertility. Thus, this option is also not correct. 3. **Option C: Chemical fertilizers** - Chemical fertilizers are synthetic substances created through chemical processes to enhance soil fertility. They are not of biological origin, so this option is incorrect. 4. **Option D: Green manure** - Green manure refers to crops that are grown specifically to be plowed back into the soil to improve its fertility. These crops are of biological origin and are used to enhance soil structure, nutrient content, and overall fertility. This option is correct. Based on the analysis, the correct answer is **(d) Green manure**.
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