Question

3
Q 16. Why is it better to use compost instead of chemical fertilizers? Give any three reasons.
3
17. Draw a neat diagram of pistil of a flower.​

Answer 1

Answer:

Yes, it is better to use compost instead of chemical fertilizers.

Compost is made out of natural or organic things like plant and animal wastes which do not cause any pollution whereas the chemical fertilisers are prepared from harmful chemicals which cause soil and water pollution.

Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed. Stigma: The part of the pistil where pollen germinates.

Answer 2

Answer:

16.ans- Compost is prepared from plant and animal wastes, therefore, it easily gets decomposed. It does not add any harmful chemicals to the soil, whereas an excessive use of chemical fertilizers causes soil and water pollution.

17.ans- The above picture is a diagram of the pistil/carpel of a flower.

Hope it helps you