Quality Improvement

Q.

Write five ways in which we can prevent the wastage of food.

Q.

Pusa A-4 is resistant to shoot and fruit borer.

1. True
2. False

Q. Why farmers are used leguminous plant for cultivating?

Q.

Name two animals which undergo external fertilisation and two animals which undergo internal fertilisation?

Q.

What are crop production and its management?

Q.

Explain any one method of crop production that ensures a high yield.

Q.

Shark liver oil is rich in ___.

Q. Crop variety improvement is done to achieve .

1. higher yield
2. degraded quality
3. big seeds

Q. Which of the following helps in maintaining soil fertility?

1. Pesticides
2. Crop rotation
3. Herbicides
4. Tissue culture

Q.

Crop variety improvement is done to achieve which of the following objectives?

1. Phosphorus

2. Copper

3. Hydrogen

4. Manganese

Q.

Which of the following methods can be used for improving crop variety?

1. Giving more water to plant
2. Genetic Engineering
3. Allowing plant to grow in forest

4. Using more fertilisers

Q. What are genetically modified crops?

Q.

What are the factors for which crop improvement is desirable?
1. Higher yield
2. Improved quality
3. Good looks
4. Disease resistance
5. More height
6. Wider adaptability

1. 1, 2, 3, 4

2. 1, 2, 4, 6

3. 2, 3, 5, 6

4. 1, 2, 4, 5

Q. What are the adverse effects of using high yielding varieties of seeds?

1. They are expensive
   
2. They are require lots of water for irrigation
   
3. They have a low productivity.
   
4. Both A and B
   

Q. Which of the following is not a characteristic of a healthy crop?

1. Good quality
2. High yielding
3. Resistant to climate change
4. Prone to diseases

Q.

What is meant by micronutrient fortified food?

Q.

The science of improving crop varieties is called ________ .

1. Plant breeding

2. Introduction

3. Crop Rotation

4. Selection

Q.

Study the two statements labelled as (A) and (B) and choose the correct option.

A: Biofertilisers can be used to improve the yield of a plant.

B: Substances applied to soil or directly onto plants to provide nutrients for their growth and development are called fertilisers.

1. A is true and B is False
2. A and B are false
3. A and B are true
4. A is false and B is true

Q. Identify the factors influencing the growth of crops.

1. Availabilty of water
2. Climatic conditions
3. Healthy soil
4. Healthy crop

Q.

If the information about genes is available, the process of ______ can be used to improve crop variety.

1. Layering

2. Grafting

3. Hybridisation

4. Genetic modification

Q. Why is it important to improve food resources?

Q.

Crop variety improvement aims to produce _______ .

1. disease-free varieties

2. high-yielding varieties

3. early-maturing varieties

4. all of these

Q. why are cyanobacteria used in agriculture fields for crop improvement?

Q. What are the main characters required in a crop during its improvement practises ?

Q. Nithya is advised to eat fish regularly. Is it healthy? Justify.

Q.

The increase in food grain production after the introduction of improved varieties of crops is often referred to as:

1. Yellow Revolution

2. Blue Revolution

3. White Revolution

4. Green Revolution

Q. A group of farmers is planning to increase the yield from crops. Make a list of factors that they should consider for crop improvement.

Q.

Why is there a need to improve the yield of food grains?

1. The amount of cultivable land has reached its limit.

2. There is a shortage of water resources needed for irrigation.

3. None of these

4. The population of India is growing rapidly.

Q. Alley cropping' means _____________________.

1. Growing of pastures in between two widely spaced rows of fast growing trees
2. Growing of field crops in between two widely spaced rows of fast growing trees
3. Growing of only short duration crops in between two widely spaced rows of fast growing
   trees
4. Growing of only fooder crops in between two widely spaced rows of first growing trees