Differentiate between manures and fertilizers.

Important Questions on Improvement in Food Resources

EASY

9th CBSE

IMPORTANT

Biology for Class IX>Chapter 1 - Improvement in Food Resources>Exercise>Q 18

What are bio-fertilizers? Name any two of them.

MEDIUM

9th CBSE

IMPORTANT

Biology for Class IX>Chapter 1 - Improvement in Food Resources>Exercise>Q 19

What do you understand by organic farming? How is it better than the traditional farming?

MEDIUM

9th CBSE

IMPORTANT

Biology for Class IX>Chapter 1 - Improvement in Food Resources>Exercise>Q 20

How can rainwater harvesting be used to increase groundwater levels?

MEDIUM

9th CBSE

IMPORTANT

Biology for Class IX>Chapter 1 - Improvement in Food Resources>Exercise>Q 21

Describe the role of fertilizers and irrigation in improving crop yield. Mention any one effect of each if it is used in excess.

MEDIUM

9th CBSE

IMPORTANT

Biology for Class IX>Chapter 1 - Improvement in Food Resources>Exercise>Q 22

Neelam attended an agricultural festival organised by her school. She herself belongs to an agricultural family. In the, festival, she heard about the harmful effects of using pesticides. Next day, she saw her father filling the spray tank with pesticides to spray on their field. She stopped him from using it.
(i) Can you give some points that would help Neelam convince her father to stop using pesticides in large quantities?
(ii) What values are shown by Neelam?

MEDIUM

9th CBSE

IMPORTANT

Biology for Class IX>Chapter 1 - Improvement in Food Resources>Exercise>Q 23

What is mixed farming? How does it help a farmer?

MEDIUM

9th CBSE

IMPORTANT

Biology for Class IX>Chapter 1 - Improvement in Food Resources>Exercise>Q 24

State the various criteria used for selecting crops in mixed cropping.

MEDIUM

9th CBSE