General Science Questions

Q:

Salination of soil is caused by

A) Pesticides B) soil erosion
C) excess irrigation D) crop rotation
 
Answer & Explanation Answer: C) excess irrigation

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Q:

Minamata disease is a nervous disorder caused by eating fish, polluted with _____

A) Iron B) Mercury
C) Lead D) Nickel
 
Answer & Explanation Answer: B) Mercury

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Q:

Malachite is an ore/mineral of

A) Lead B) Manganese
C) Mercury D) Copper
 
Answer & Explanation Answer: D) Copper

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Q:

Which of the following is not a commercial source of energy?

A) Coal B) Petroleum
C) Natural Gas D) Firewood
 
Answer & Explanation Answer: D) Firewood

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Q:

_______ determines colour, texture, chemical properties, mineral content and permeability of soil.

A) Flora & Fauna B) Time
C) Climate D) Parent rock
 
Answer & Explanation Answer: D) Parent rock

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Q:

__________ is the interaction in which one species benefits and the other is neither harmed nor benefited.

A) Predation B) Commensalism
C) Competition D) Parasitism
 
Answer & Explanation Answer: B) Commensalism

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Q:

What are Equinox days?

A) When day is smaller than night B) When day is the longest in the year
C) When day is greater than night D) When day and night are equal
 
Answer & Explanation Answer: D) When day and night are equal

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Q:

The ozone layer protects us from harmful _______________ rays of the sun.

A) infrared B) cosmic
C) gamma D) ultraviolet
 
Answer & Explanation Answer: D) ultraviolet

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