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Q 1.
Who is bottom feeder?
Ans.
Mrigals and common carps.
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Q 2.
Who is middle zone feeder?
Ans.
Rohus.
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Q 3.
Who is surface feeder?
Ans.
Catlas.
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Q 4.
Name the cheap source of protein?
Ans.
Fish.
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Q 5.
Which food item have maximum amount of protein?
Ans.
Meat.
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Q 6.
How many nutrients are obtained by plant from soil?
Ans.
13.
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Q 7.
Who is milch?
Ans.
Milk producing females are called milch animals.
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Q 8.
Buffaloes belongs to which species?
Ans.
Bos- bubalis.
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Q 9.
Xanthium and Parthenium are the examples of?
Ans.
Weeds.
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Q 10.
Name the nutrients present in soil?
Ans.
Micronutrient and Macronutrient.
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Q 11.
Name the nutrients present in water?
Ans.
Hydrogen and oxygen.
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Q 12.
Name the nutrients present in air?
Ans.
Carbon and oxygen.
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Q 13.
How manure is prepared?
Ans.
By the decomposition of animals excreta and plant waste.
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Q 14.
How manure can be classified?
Ans.
1.Compost and vermi compost
2.Green manure |
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Q 15.
What is fodder crops?
Ans.
Berseem, oats and Sudan grass.
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Q 16.
What is weeds?
Ans.
Weeds are unwanted plants in the cultivated field.
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Q 17.
How many nutrients are essential fir crops?
Ans.
16.
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Q 18.
Which species are cows belong?
Ans.
Bos goaticus.
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Q 19.
Honey and wax are obtained from?
Ans.
Bee keeping.
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Q 20.
Define crop rotation?
Ans.
Growing od different crops on a piece of land in pre- planned succession is called crop rotation
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Q 21.
Define inter-cropping?
Ans.
Growing two or more crops in definite row patterns is known as inter-cropping.
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Q 22.
Bee keeping is done to get?
Ans.
Honey and wax.
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Q 23.
What are the two main sources of nutrients of crops?
Ans.
Manure and Fertilizers.
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Q 24.
Which marine fish has higher economic value?
Ans.
Prawns mussels and oysters.
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