Question

3. What are manure and fertilizers ?
4. What is animal husbandry ?
5. Name the biotic factors that affect crop yield.
6. What is vermi composting ?
7. What do you understand by 'combine'?​

Answer 1

3. Manure is organic material that is prepared by decomposition of crop residue or animal droppings, which is added to soil to improve its fertility.

Fertilizer is any substance, organic or inorganic, that is added to the soil to increase the yield of crops.

4. In animal husbandry animals are raised for meat, milk, eggs or other products.

5. Biotic factors such as insects, diseases, pests decrease the crop production. Whereas factors such as climate, rain, wind helps in growth of crops.

6. Vermicomposting is a way of producing compost from vegetative matters using worms.

7. To combine is to join two or more things together to form a combination.