Questions

Q:

Land covers about ______ of the earth's surface.

A) 20% B) 30%
C) 35% D) 40%
 
Answer & Explanation Answer: B) 30%

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Q:

Why do the plant closes stomata when it does NOT need carbon dioxide for photosynthesis?

A) To store carbon dioxide B) To prevent water loss
C) To release stored oxygen D) No option is correct
 
Answer & Explanation Answer: B) To prevent water loss

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Q:

DEF is right angled at E. If tanD = 4/3, then what is the value of tanF ?

A) 3/4 B) 5/3
C) 4/5 D) 4/3
 
Answer & Explanation Answer: A) 3/4

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Q:

ΔXYZ is right angled at Y. If cosX = 3/5, then what is the value of cosecZ ?

A) 3/4 B) 5/3
C) 4/5 D) 4/3
 
Answer & Explanation Answer: B) 5/3

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Q:

What is the simplified value of (cos A + sin A)(cot A + tan A)?

A) sec A + cosec A B) sin A + cos A
C) tan A + cot A D) sec A – cosec A
 
Answer & Explanation Answer: A) sec A + cosec A

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Q:

Which of the following Sultans of Tughlaq dynasty issued copper coins instead of silver ones?

A) Ghiyasuddin Tughlaq B) Muhammad bin Tughlaq
C) Firoz Shah Tughlaq D) Mahmud Tughlaq
 
Answer & Explanation Answer: B) Muhammad bin Tughlaq

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Filed Under: Indian History
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Q:

Ashoka was an emperor of the __________ Dynasty.

A) Mughal B) Chola
C) Maurya D) Gupta
 
Answer & Explanation Answer: C) Maurya

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Q:

Who invented Vacuum Flask?

A) Charles Babbage B) Alexander Fleming
C) Gregory Pincus D) James Dewar
 
Answer & Explanation Answer: D) James Dewar

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Filed Under: Inventions
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