Why do farmers thresh the crop?

Important Questions on Crop Production and Food from Animals

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 4

Why is 'winnowing', practised by farmers?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 5

Describe the working of a 'Harvester combine'.

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 6

What is the advantage of mechanised harvesting?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 1

Why do crops need protection?

MEDIUM

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 2

Birds damage the fruits and seeds on crops, but they are considered as useful. Why?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 3

What do you understand by pests?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 4

Are all pests pathogens?

MEDIUM

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 1 - Crop Production and Food from Animals>Test Your Learning Outcome>Q 5

What for do we use a spray of pesticides?