NCERT Class VIII Science Solutions: Chapter 1-Crop Production and Management Part 4

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Question 9:

What are weeds? How can we control them?

Answer:

The undesirable plants may grow naturally along with the crop are called weeds. There are many ways to remove weeds and control their growth. Weeds can be removed by uprooting or cutting them close to the ground, from time to time. This is done with the help of a khurpi.

Weeds are also controlled by using certain chemicals, called weedicides, like 2, 4–D. These are sprayed in the fields to kill the weeds.

As showing in images is a result for What are weeds

Result for What Are Weeds

Question 10:

Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.

This diagram shows flow chart of sugarcane crop production

Flow Chart of Sugarcane Crop Production

Answer:

As showing in images is a flow chart of sugarcane crop produ …

Sugarcane Crop Production Correct Order

Image result for a flow chart of sugarcane crop production

Diagram Shows Arrangement of Sugarcane Crop Production

Question 11:

Complete the following word puzzle with the help of clues given below.

Down:

  • 1. Providing water to the crops.

  • 2. Keeping crop grains for a long time under proper conditions.

  • 5. Certain plants of the same kind grown on a large scale.

Across:

  • 3. A machine used for cutting the matured crop.

  • 4. A rabbi crop that is also one of the pulses.

  • 6. A process of separating the grain from chaff.

As showing in images is a puzzle word

Puzzle Word

Answer:

Down:

  • 1. Irrigation

  • 2. Storage

  • 5. Crop

Across:

  • 3. Harvester

  • 4. Gram

  • 6. Winnowing

This image shows answer puzzle word

Answer Puzzle Word

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