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 General Science Questions

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Q:

Particulates (< 1 μm size) remaining suspended in air indefinitely and transported by wind currents are called

A) Mists B) Fumes
C) Aerosols D) Smoke
 
Answer & Explanation Answer: C) Aerosols

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Q:

Which of the following is biodegradable?

A) Cattle dung B) Aluminium cans
C) Plastics D) D.D.T
 
Answer & Explanation Answer: A) Cattle dung

Explanation:

Any substance that does not cause pollution and is capable of getting decomposed by any living organism is called as Bio degradable. Human & animal excreta, plant wastes etc... come under bio-degradable.

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Q:

The tree species most commonly used in social forestry is

A) Peepal B) Gulmohar
C) Eucalyptus D) Mango
 
Answer & Explanation Answer: C) Eucalyptus

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Q:

In a food chain, what is the difference between primary consumers and secondary consumers?

A) Primary consumers eat plants and other consumers, secondary consumers eat plants and decomposed matter B) Primary consumers eat only plants, secondary consumers eat primary consumers
C) Primary consumers eat plants and decomposed matter, secondary consumers eat plants and other consumers D) Primary consumers eat other consumers, secondary consumers eat only plants
 
Answer & Explanation Answer: B) Primary consumers eat only plants, secondary consumers eat primary consumers

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Q:

Which of the following is a viral disease?

A) Polio B) Tetanus
C) Leprosy D) Plague
 
Answer & Explanation Answer: A) Polio

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Q:

Fruits and vegetables are good sources of

A) Fats & Fibre B) Vitamins & Fats
C) Minerals & Vitamins D) Calories & Fats
 
Answer & Explanation Answer: C) Minerals & Vitamins

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Q:

Which wood is used to make a cricket bat?

A) Teak B) Willow
C) Bamboo D) Rosewood
 
Answer & Explanation Answer: B) Willow

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Q:

Which of the following represents the most complex trophic level?

A) Community B) Population
C) Ecosystem D) Species
 
Answer & Explanation Answer: C) Ecosystem

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