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Q:

REM sleep is also known as paradoxical sleep because

A) Measures of the brain activity closely resemble waking consciousness, but the person is incapable of moving. B) The person can have night terrors during this stage but will not remember them in the morning. (E) Th e person's vital signs are very slow, but the person can get up and walk around
C) Measures of the brain activity closely resemble waking consciousness, but the person is in the deepest stage of sleep. D) The person's heart rate is slower than when awake, but the person can sleepwalk or sleep talk.
 
Answer & Explanation Answer: A) Measures of the brain activity closely resemble waking consciousness, but the person is incapable of moving.

Explanation:

REM sleep i.e, Rapid Eye Movement sleep is also known as paradoxical sleep because the measures of the brain activity closely resemble waking consciousness, but the person is incapable of moving as the brain is in fully active mode that time.

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Filed Under: Biology
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Q:

Which organelles supply energy to the cell?

A) Mitochondria B) Cytoplasm
C) Ribosomes D) None of the above
 
Answer & Explanation Answer: A) Mitochondria

Explanation:

Mitochondria which is present in both plant and animal cells supplies energy to the cells and hence called as the powerhouse of the cell.

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Filed Under: Biology
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Q:

Indian armed forces conducted 'Operation Meghdoot' at

A) Kargil B) Srinagar
C) Siachen D) Amritsar
 
Answer & Explanation Answer: C) Siachen

Explanation:
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Filed Under: Indian Geography
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Q:

The Ajanta Cave Paintings are a testimony to the golden age of ____ in India.

A) Buddhism B) Shaivism
C) Jainism D) Vaishnavism
 
Answer & Explanation Answer: A) Buddhism

Explanation:
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Filed Under: Indian History

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Q:

The solubility of a gas in a liquid is

A) increased with increasing pressure B) decreased with increasing temperature
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The solubility of a gas in a liquid is directly and inversely proportional to pressure and temperature respectively.

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Filed Under: Physics
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Q:

'Green Banking' means :

A) Banks financing agriculture B) Banks financing irrigation projects
C) Banks financing farmers D) Banks financing pro-­environmental projects
 
Answer & Explanation Answer: D) Banks financing pro-­environmental projects

Explanation:
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Filed Under: General Awareness
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Q:

For a certain reaction,DGq = -45 kJ/mol and DHq= -90 kJ/mol at 0°C. What is the minimum temperature at which the reaction will become spontaneous, ifDHq and DSq are independent of temperature?

A) 273 K B) 298 K
C) 546 K D) 596 K
 
Answer & Explanation Answer: C) 546 K

Explanation:

T = 273 °K

Using the formula,

DGq = DHq –TDS

-45 = -90 –273 DS

DS = 0.164

Now since DHq and DSq are independent,T2= DH/DS = 45/0.164 = 273°K

Required Temp = 273 + 273 = 546°K

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Filed Under: Physics
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Q:

What is the term for classifying and grouping organisms?

A) Homology B) Taxonomy
C) Biology D) Zeology
 
Answer & Explanation Answer: B) Taxonomy

Explanation:

The term for classifying and grouping organisms is Taxonomy. It is the science of defining and naming groups of biological organisms on the basis of shared characteristics.

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Filed Under: General Science
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