How do weeds affect crop plants?

Important Questions on Improvement in Food Resources

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 6

Define hybridisation.

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 7

What is a GM crop?

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 8

Name a GM crop grown in India.

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 9

What are Xanthium and Parthenium?

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 10

Name the farming system without the use of chemicals as fertilisers, herbicides and pesticides.

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 11

Which type of crop is grown in winter season?

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 12

Define the term ‘photoperiod’.

EASY

9th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 9>Chapter 6 - Improvement in Food Resources>EXERCISE - 6A>Q 1

Name the different essential elements for plants.