Q:

Involuntary muscles are controlled by the

A) Central nervous system	B) Autonomic nervous system
C) Peripheral nervous system	D) All the above

Answer & Explanation Answer: B) Autonomic nervous system

Explanation:

Involuntary muscles are the muscles which contract without conscious control whereas Voluntary muscles are the muscles that help you walk, talk, pick up things, jump and do all the basic or complex movements you do everyday with your consciousness.

* The contraction in the involuntary muscles is controlled by the autonomic nervous system. These are present in the walls of the digestive system, blood vessels, bronchi, uterus and bladder.

* Voluntary muscles are mostly located in the arms ,legs ,hands, and feet.

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Filed Under: Biology
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Q:

What marks the onset of puberty in females?

A) Menopause	B) Adolescence
C) Menstruation	D) Menarche

Answer & Explanation Answer: D) Menarche

Explanation:

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Filed Under: Biology
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Q:

If a country devalues its currency, its _______________

A) Exports become cheaper and imports become costlier	B) Exports become costlier and imports become cheaper.
C) Exports value is equivalent to imports value	D) No effect on exports and imports

Answer & Explanation Answer: A) Exports become cheaper and imports become costlier

Explanation:

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Filed Under: Indian Economy
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Q:

If for a perfectly competitive firm, price is Rs 7.2, output is 4500 units, average variable costs are Rs 1.2, and average total costs are Rs 4. The firm's profits are equal to

A) Rs 7200	B) Rs 9000
C) Rs 14400	D) Rs 19800

Answer & Explanation Answer: C) Rs 14400

Explanation:

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Q:

For each perfectly competitive firm in the long run

A) price = marginal costs = average variable costs	B) price = average profit
C) price = marginal costs = minimum average total costs	D) price = minimum average variable costs

Answer & Explanation Answer: C) price = marginal costs = minimum average total costs

Explanation:

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Q:

In the Modern Periodic Table elements present in the same period will have the same

A) atomic weight	B) number of shells
C) atomic number	D) valence electrons

Answer & Explanation Answer: B) number of shells

Explanation:

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Filed Under: Chemistry
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Q:

Which of the following regions has the highest potential for wind energy?

A) The Deccan Plateau	B) Gangetic planes
C) Western Ghats	D) The Himalayas

Answer & Explanation Answer: C) Western Ghats

Explanation:

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Filed Under: Indian Geography
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Q:

Oxygenated blood flows out of the heart through the _____ .

A) aorta	B) pulmonary artery
C) vena cava	D) atrium

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