MEDIUM
8th CBSE
IMPORTANT
Earn 100

About how many years ago did agriculture begin?

Important Questions on Crop Production

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B

Fill in the blank with the correct answer from the bracket.

Large grasses cultivated for their nutritious seeds are called _____. (pulses, cereals, plantations)

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B

Fill in the blank with the correct answer from the bracket.

The agricultural implement used to sow seeds is called a seed _____. (combine, drill, thresher)

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B
All crops require approximately the same amount of water at roughly the same time periods of their growth.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B
Name one pesticide you will use to kill insects that harm crops.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B
Pesticides are used to kill small pests, but they are not strong enough to cause harm to humans.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B
Name the nitrogen fixing bacteria in root nodules of leguminous plants.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B

Fill in the blank with the correct answer from the bracket.

Conversion of proteins into ammonia is called _____. (nitrification, ammonification, denitrification)

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 1 - Crop Production>EXERCISES>Q B
Some bacteria can convert nitrate salts in the soil to free nitrogen.