Which one is not a biofertilizer?

Important Questions on Competition Corner-3

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

The example of 'green manure' is

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

Root nodules of leguminous plants contain

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

The enrichment of water bodies with nutrients leading to excessive growth of phyto plankton is known as

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

To solve the food problem of the country, which among the following is necessary?

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

Find out the correct sentence.
(i) Hybridization means crossing between genetically dissimilar plants.
(ii) Cross between two varieties is called as interspecific hybridization.
(iii) Introducing genes of desired character into a plant gives genetically modified crop.
(iv) Cross between plants of two species is called as inter - varietal hybridization.

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

Weeds affect the crop plants by

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

Find out the correct sentence about manure.
(i) Manure contains large quantities of organic matter and small quantities of nutrients.
(ii) It increases the water holding capacity of sandy soil.
(iii) It helps in draining out of excess of water from clayey soil.
(iv) Its excessive use pollutes environment because it is made of animal excretory waste.

EASY

9th CBSE

IMPORTANT

The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 18 - Competition Corner-3>Exercise: Improvement In Food Resources

Which one of the following nutrients is not available in fertilizers?