Question

Q3. Give reasons why:
i.
Cotton seeds are
dispersed by wind.
ü. Manure is added to crops.​

Answer 1

Answer:

cotton seeds are dispersed by wind because they are very weight less material and by dispersion they can grow at different places.

to increase the productivity of the grain.

Thank you.

Answer 2

Answer:

1. seeds of cotton have tiny hairs surrounding them. While the Maple seed has wings attached to it. these adaptations help the seeds to be carried out by wind. ... This causes the seeds to be thrown away from the parent plant.

2.Manure is organic matter derived from animal faeces and plant waste. When the plants are cultivated continuously on a field, the soil gradually loses its nutrient and eventually gets depleted. Thus, manures and fertilizers are used to provide nutrient to the soil due to which the crop yield is enhanced.