The conservation of local (endemic) varieties of crops is must, because ____.

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The conservation of local (endemic) varieties of crops is must, because they are source of genes for genetic diversity.

Wheat, gram, peas, mustard, linseed is Kharif crops.

Correct! Wrong!

Wheat, gram, peas, mustard, linseed is Rabi crops.

We prefer to use new gunny bags for storing grains, because ____.

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Old gunny bag may carry some pests or microorganisms which can spoil the fresh stock of grains. So it is preferable to use new ones.

Bio pesticides are ____.

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Bio pesticides are the living organism or their products that are used for the pest control.

Which of the following is low in fibre and rich in protein of cattle feed?

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Concentrates is low in fibre and rich in protein of cattle feed.

Which of the following is an indigenous breed of buffalo?

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Murrah is a buffalo breed of Haryana and Punjab states. It is well known for high milk yielding breed.

Bees are said to be polymorphic due to the ____.

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Honey bees exist in different morphological forms, such as queen, workers and drones.

The major sources of bio fertilizers are ____.

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The major sources of bio fertilizers are bacteria (Rhizobia), cyanobacteria (Nostoc) and certain fungi.

Which among the following methods, culture fishes are grown and lowered into the river?

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In cage culture method, fishes are cultured in large cages made of bamboo or steel and lowered into the river. Generally carnivorous species (sharks) are cultured in cages.

Which of the following bacterial disease transmitted to humans from cattle?

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Brucellosis is a bacterial disease in cattle, where infection occurs in the reproductive tract leading to sterility of the animal. If not taken proper care, this disease can spread to humans.

Mass selection, clonal selection, pedigree selection are the three basic methods to develop disease resistant varieties.

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The word ‘livestock’ includes the animals that are utilized in human activities.

The effect of large amount of moisture present in food grains during storage is that ____.

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The large amount of moisture present in food grains increases the rate of decay of food materials caused by microorganisms and enzymes. Also the population of insects increases rapidly.

Sign of a diseased animal is ____.

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Drooping lips and ears are a sign of a diseased animal.

Indian cow belongs to ____ species.

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Indian cattle belong to two different species. They are Bos indicus - cow, and Bos bubalis - buffaloes.

Chemical fertilizers should be replaced by bio fertilizers, because ____.

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Chemical fertilizers are the source of pollutants causing soil and water pollution.

Which method prevents the cattle from bacterial and viral diseases?

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Giving vaccines to cattle against bacterial and viral diseases, immunizes them against bacterial and viral diseases and prevents them from falling sick.

Which of the following statement is correct regarding a pest?

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Pest is an organism feeding on and damaging hosts. It may be bacteria, virus or insects.

Catfish and murrels suitable for use in paddy - cum - fish culture, because they ____.

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Fishes like catfish and murrels live in shallow water and tolerate temperature fluctuations. They help the farmer by eating weeds and insects in the paddy field.

Bee keeping is also known as ____.

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Bee keeping is also known as Apiculture.

Composite manure is composed of ____.

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Composite manure is composed of animal excreta and rotten vegetables.

A bio fertilizer makes ____ available to the crop plant.

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A bio fertilizer is a complete fertilizer and it makes all nutrients available to the plants.

The crop that is affected by Red rot disease is ____.

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Red rot disease is observed in sugarcane only.

Who is the pioneer behind white revolution in India?

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Dr. V. Kurien, the founder chairman of NDDB (National Dairy Development Board), is the pioneer of white revolution in India, which brought about the huge increase in milk production in India.

Which of the following method was a hurdle for green revolution?

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The green revolution in India was possible due to exploitation of high yielding varieties. High yielding variety of wheat marked the initiation of green revolution in India.

The kharif season is from the month of ____.

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The kharif season is from the month of June to October. kharif crops need more water for their growth, hence they are sown during the rainy season.

Which of the following is a viral disease in cattle?

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Rinderpest is caused by virus in cattle. Diseased animal shows constipation followed by severe diarrhoea and discharge from eyes and nostrils.

____ is a macronutrient.

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Nitrogen, phosphorus, potassium, calcium, magnesium and sulphur are macro nutrients.

Bio pesticides are recommended, because they ____.

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Bio pesticides are eco-friendly and they protect the crop without causing any adverse effects on the environment.

Which of the following statements is correct?

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The honey yield of Apis mellifera is about 250 kg of honey per hive per year, whereas the Apis indica yield only about 5 kg per hive per year.

In the bee colony, haploid fertile males are called as ____.

Correct! Wrong!

Drones are the haploid fertile males. Drones main role is to mate with the queen bee.

CBSE Class 9th Science 15 - Improvement in food resources MCQs
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