Questions

Q:

Why are viruses considered to be nonliving?

A) Viruses have no metabolic activity. B) Viruses don't have any cells, like living organisms.
C) Viruses can't produce new proteins, DNA, or RNA. D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Viruses are responsible for some of the most dangerous and deadly diseases including influenza, ebola, rabies and smallpox.

Despite their potential to kill, these potent pathogens are in fact considered to be non-living.

 

Reasons:

1. Viruses don't have any cells, like living organisms do. They have protein coats but no organelles or other cellular machinery. Just a little DNA packet.

2. Viruses can't produce new proteins, DNA, or RNA and therefore are unable to reproduce on their own. They need infected cells' machinery to make all of these and produce new virons.

3. Viruses have no metabolic activity. They don't use or convert energy and have no ongoing interior processes. They're basically just inert structures until they impact a potential host cell.

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Filed Under: General Science
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Q:

What invisible force holds you onto the earth, so that you don't simply fall off?

A) gravity B) magnetism
C) wind D) speed
 
Answer & Explanation Answer: A) gravity

Explanation:
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Filed Under: General Science

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Q:

What has two hands but no arms or legs?

Answer

A Clock has 3 hands i.e, an Hour hand, a Minute hand and a Seconds hand.

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Q:

Persons with which blood group are called universal donors?

A) AB B) A
C) O D) B
 
Answer & Explanation Answer: C) O

Explanation:
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Filed Under: General Science

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Q:

Who present the theory of radioactive disintegration

A) Rutherford and Soddy B) Soddy and Fajan
C) Thomson and Rutherford D) Hahn and strassman
 
Answer & Explanation Answer: A) Rutherford and Soddy

Explanation:
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Filed Under: Chemistry

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Q:

Chandra and Bhaga , the two streams join to form ________river

A) Jhelam B) Indus
C) Ravi D) Chenab
 
Answer & Explanation Answer: D) Chenab

Explanation:

It is the largest of all tributaries of Indus and rises in the Himalayan region in Himachal Pradesh

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Filed Under: Indian Geography

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Q:

Distance of stars are measured in

A) Galactic unit B) seller mile
C) Cosmic Kilometre D) Light year
 
Answer & Explanation Answer: D) Light year

Explanation:
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Filed Under: Physics

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Q:

The valve present between left auricle and left ventricle is

A) Mitral B) Tricuspid
C) Semilunar D) Pulmonary
 
Answer & Explanation Answer: A) Mitral

Explanation:
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Filed Under: Biology

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