Q:

Plants are photoautotrophs. What does this mean?

Answer

Photoautotrophs are those organisms that can make their own food using sun light with the help of the process of photosynthesis.

Plants can prepare their own food using sunlight. Hence they are Photoautotrophs.

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Q:

A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is:

A) 150 J	B) 100 J
C) 50 J	D) 75 J

Answer & Explanation Answer: A) 150 J

Explanation:

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Filed Under: Physics
Exam Prep: CAT , Bank Exams , AIEEE

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Q:

A weathering process in which layers of rocks peel off as expansion alternates with contraction , is known as ___

A) Shattering	B) Block seperation
C) Granular disintegration	D) Exfoliation

Answer & Explanation Answer: D) Exfoliation

Explanation:

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Filed Under: World Geography

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Q:

You can have me but cannot hold me; Gain me and quickly lose me. If treated with care I can be great, And if betrayed I will break.

What am I?

Answer

TRUST.

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Q:

Name one problem that led to the civil war.

A) Slavery	B) Economic reasons
C) State's Rights	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

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Filed Under: World History
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Q:

Smallest units of meaning in a language

A) Pragmatics	B) phoneme
C) morpheme	D) syntax

Answer & Explanation Answer: C) morpheme

Explanation:

A morpheme is the smallest unit of a word that provides a specific meaning to a string of letters.

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Filed Under: English
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Q:

Work done in a free expansion process is

A) Minimun	B) 0
C) Maximum	D) None of the above

Answer & Explanation Answer: B) 0

Explanation:

No work done as there is no external external pressure in free expansion.

Hence, Work done in a free expansion process is Zero.

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Filed Under: Physics
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Q:

The ratio of gross cropped area to the net sown area is called

A) cropping intensity	B) intensity of crop rotation
C) crop productivity	D) cropping diversity

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