Assertion and Reason Questions for Class 9 Science Chapter 15 Improvement in Food Resources

Assertion and Reason Questions for Class 9 Science Chapter 15 Improvement in Food Resources

Here we are providing assertion reason questions for class 9 science. This article covers assertion reason questions based on Class 9 Science Chapter15 Improvement in Food Resources. To check the answer, click on ‘answer’ given below each question. After clicking it will expand.

Directions: In each of the following questions, a statement of Assertion is given, and a corresponding statement of Reason is given just below it. Of the statements, given below, mark the correct answer as:
(a) Both assertion and reason are true, and reason is the correct explanation of assertion.
(b) Both assertion and reason are true, but reason is not the correct explanation of assertion.
(c) Assertion is true, but reason is false.
(d) Assertion is false, but reason is true.

Q.1.
Assertion: Draught breeds of cows are used mainly as beasts of burden.
Reason: Draught breeds of cow give less milk but are strong and sturdy.

Show Answer

Answer: a

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Q.2.
Assertion: Inter cropping prevents pests.
Reason: Plant pests can be controlled biologically by their natural parasites and pathogens.

Show Answer

Answer: b

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Q.3.
Assertion: Fumigation of the grains using chemicals is done before storage in warehouses.
Reason: Fumigation gives a nice colour to the grains.

Show Answer

Answer: c

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Q.4.
Assertion: A pulse crop grown in a time interval between two cereal crops
Reason: To compensate for the loss of nitrogen

Show Answer

Answer: a

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Q.5.
Assertion: Some weeds produce substances toxic for the crops.
Reason: Weeds take up nutrients and reduce the growth of crops.

Show Answer

Answer: b

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Q.6.
Assertion: Cattle are fed with roughage and concentrates.
Reason: Roughage provides fibres while concentrates provide proteins and other nutrients.

Show Answer

Answer: a

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Q.7.
Assertion: Financial status of people should be increased, especially who are involved in agricultural practices
Reason: Financial status can provide food security.

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Answer: a

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Q.8.
Assertion: Nitrogen is a micronutrient.
Reason: Micronutrients are nutrients required in small quantity.

Show Answer

Answer: d

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Q.9.
Assertion: Manures improve soil conditions.
Reason: In manures, elements are not present in adequate proportions.

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Answer: b

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Q.10.
Assertion: Vaccinations are given to farm animals.
Reason: Vaccinations protect the farm animals from a number of diseases caused due to virus and bacteria

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Answer: a

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Q.11.
Assertion: Fisheries are important place in Indian economy.
Reason: Fisheries provide income and employment to millions of farmers and fishermen particularly in coastal states.

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Answer: a

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Q.12.
Assertion: Legumes increases the soil fertility.
Reason: Microbes in the root nodules of leguminous plants fix atmospheric nitrogen.

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Answer: a

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Q.13.
Assertion: Presence of weeds affects the crop field.
Reason: Weeds compete for food, space and light.

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Answer: a

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Q.14.
Assertion: Layers are given more of vitamin A and K.
Reason: Layers are raised for eggs.

Show Answer

Answer: c

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Q.15.
Assertion: Crop rotation is the practice of growing two or more varieties of crops in the same region in sequential seasons.
Reason: Cauliflower and chilli plants grown together in alternating rows are examples of crop rotation.

Show Answer

Answer: c

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