Page 3 - Cl8-Bio_CBQ_CROP PRODUCTION AND MANAGEMENT[1]

11. Nisha performs an experiment with two potted plants. She keeps the pots in sunlight
and waters them equally.She adds manure to the soil in Pot-1 and fertilizer to the soil
in pot-2.

(a) Did both the plants in
the pots grow at the
same pace?
(b) Which pot showed
better growth of
plants? In which pot
was the growth
fastest?
12. Kanhaiya, a small farmer ploughs his field with the help of a shovel. A class 8 student
told him about new inventions by which the time and labour of farming can be
reduced. Can you name any three such inventions and their benefits which will help
Kanhaiya in crop production?
S.NO Innovation Benefits
1.
2.
3.

13. Identify the state by the harvest festival’s names –

14. A boy named Reyansh from Gwalior who studies in 8th standard is very fond of plants.
He has a small garden in the backyard. One day, a small announcement was made in
school. In summer vacations, every student needs to do a project according to his/her
own interest. Reyansh decided to grow a plant during summers and present it in front
of the whole class as his project. Reyansh decided to grow peas. So he went to the
market and bought the best quality seeds, sand and fertilizers. He came back home,
went to the backyard and planted the seeds and started taking good care of the
plants. But as day passed he began to realise that the seeds he planted had resulted in
unhealthy plants which were of very poor in quality. He tried everything but was
unable to figure out the solution.
(a) Give reason why Reyansh’s crops were unhealthy.
(b) Write two disadvantages of over using fertilizers in the fields.
15. During the flowering stage of a tomato crop, you notice signs of pest infestation (like
holes in leaves and fruit borers).
What steps would you take to control the pest without harming the environment?