Case Study Questions for Class 8 Science Chapter 1 Crop Production and Management

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Case Study Questions for Class 8 Science Chapter 1 Crop Production and Management

Here we are providing case study questions for CBSE Class 8 science Chapter 1 Crop Production and Management.

Case Study Questions

Question 1:

A boy named Yash from Gwalior who studies in 8th standard is very fond of plants. He has a small garden in the backyard. Where he’s planted many small plants and takes good care of them. He regularly waters all the plants and uses fertilizers on them to keep them healthy. 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. Yash decided to grow a plant during summers and present it in front of the whole class as his project. Yash 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 seed. Started taking good care of it. But as day
passed he began to realise that the seeds he planted are getting worse. The plant was unhealthy and very poor in quality. He tried everything but was unable to figure out the solution.

(i) Rabi crops are grown in which period?
(a) February to June
(b) October to March
(c) June to November
(d) December to January

➢ Show Answer Ans. Option (b) is correct.
Explanation: Rabi crops are grown in winters from October to March and harvested in spring. They require warm climate for germination of seeds and cold climate to grow. Wheat, pea, barley are the examples of rabi crops.

(ii) Which system is used for irrigation?
(a) Water
(b) Sprinkler System
(c) Drip System
(d) Both b and c

➢ Show Answer Ans. Option (d) is correct.
Explanation: Sprinkler system- It is the modern method of irrigation. In this system water passes through a pipe generally by pumping to watering a farm. In this, water is split into tiny drops that falls to the farms.
Drip System- It is also a method of modern irrigation. In this system, water falls drop by drop near the roots. it is a type of micro-irrigation which helps to save water.

(iii) Why Yash’s crops were grown unhealthy?

➢ Show Answer Ans. Peas are the Rabi Crops which grows in winters i.e. from October to march and requires low temp at the seedling stage.

(iv) What are the disadvantages of fertilisers?

➢ Show Answer Ans. The disadvantages of fertilisers are –
(i) Fertilisers change the nature of the soil and reduce its fertility.
(ii) Inadequate use of fertilisers can lead to pollution.

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