Harikesh

Asked: June 18, 2021In: Class 9 Science

Give one example of an Indian and foreign poultry breed which when crossed produce an improved variety. List any one desirable trait expected from such cross breeding.

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

What would happen if poultry birds are larger in size and have no summer adaptation capacity? In order to get small sized poultry birds having summer adaptability, what methods will be employed?

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

Discuss why the pesticides are used in very accurate concentration and at very appropriate time.

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

Give merits and demerits of fish culture.

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

In agriculture practices, higher input gives higher yield. Discuss how?

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

Differentiate between compost and Vermicompost.

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

Cultivation practices and crop yield are related to environmental conditions. Explain.

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

Define the terms hybridization and photoperiod.

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

If three is low rainfall in a village throughout the year, what measures will you suggest to the farmers for better cropping.

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Asked: June 18, 2021In: Class 9 Science

Why is use of excess fertilizers detrimental for environment?

NCERT Important Questions Class 9 Science biology Chapter 15 Important NCERT Extra Questions Chapter 15 Improvement in Food Resources NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board

Harikesh

Give one example of an Indian and foreign poultry breed which when crossed produce an improved variety. List any one desirable trait expected from such cross breeding.

What would happen if poultry birds are larger in size and have no summer adaptation capacity? In order to get small sized poultry birds having summer adaptability, what methods will be employed?

Discuss why the pesticides are used in very accurate concentration and at very appropriate time.

Give merits and demerits of fish culture.

In agriculture practices, higher input gives higher yield. Discuss how?

Differentiate between compost and Vermicompost.

Cultivation practices and crop yield are related to environmental conditions. Explain.

Define the terms hybridization and photoperiod.

If three is low rainfall in a village throughout the year, what measures will you suggest to the farmers for better cropping.

Why is use of excess fertilizers detrimental for environment?

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