Question

Q: Give reason in not more than 20 words:
1) Manures are generally added to soil before sowing
82) It is important to sow seeds at right depth in soil
3) Plants must be watered after the addition of fertilizers
4) Grains, fruits, vegetables must be washed before use
5) Dried Neem leaves are put in grain storage containers
It is not advised to wear synthetic clothes in kitchen
87) In hot and humid weather, we should not wear synthetic clothes
8) Cooking pans have plastic handles
9) PPE kits are made up of impermeable plastic
10) Burning cotton smells like burning paper​

Answer 1

Answer:

Continuous growing of crop in the field causes deficiency of mineral nutrients in the soil. So, the manure is added to the soil to make up the deficiency of mineral nutrients. This process is called manuring. Manure is prepared from cow dung, urine and other wastes

It is necessary to sow seeds at a proper depth because if seeds are sown very close to the surface ,birds and insects may eat them. Whereas, if seeds are sown much below than the ground they will lack water ,soil nutrients and sunlight.