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 General Science Questions

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Q:

The Ozone Layer restricts from

A) Infrared Rays B) Radio waves
C) Ultraviolet Radiation D) X-Rays and Gamma Rays
 
Answer & Explanation Answer: C) Ultraviolet Radiation

Explanation:

The Ozone layer which is present in the Earth's atmosphere protects it by restricting from UV or Ultraviolet radiation, the dangerous rays contained by Sun.

the_ozone_layer_restricts_us_from1542267550.jpg image

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Q:

Which of the following plants is not capable of manufacturing own food?

A) Algae B) Mushroom
C) Carrot D) Cabbage
 
Answer & Explanation Answer: B) Mushroom

Explanation:
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Q:

The filament of an electric bulb is made of

A) tungsten B) nichrome
C) graphite D) iron
 
Answer & Explanation Answer: A) tungsten

Explanation:

A filament is a metal wire that glows when electricity is channeled into it. The filament of an electric bulb is made of Tunsten. 

 

The_filament_of_an_electric_bulb_is_made_of1554113110.jpg image

 

Because of its high melting point and its greatest tensile strength, it makes for a good filament in light bulbs.

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Q:

If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because 

A) The soil of rain forest is deficient in nutrients B) Propagules of the trees in a rain forest have poor viability
C) The rain forest species are slow growing D) Exotic species invade the fertile soil of rain forest
 
Answer & Explanation Answer: A) The soil of rain forest is deficient in nutrients

Explanation:
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Q:

At present, scientists can determine the arrangement or relative positions of genes of DNA sequences on a chromosome. How does this knowledge benefit us?

1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease-resistant animal breeds.
Which of the statements given above is/are correct?

A) 1 and 2 only B) 2 only
C) 1 and 3 only D) 1, 2 and 3
 
Answer & Explanation Answer: D) 1, 2 and 3

Explanation:
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Q:

The theory which advocates that living beings can arise only from other living beings is termed

A) Bio-genesis B) Abiogenesis
C) Catastrophism D) Cosmozoic
 
Answer & Explanation Answer: A) Bio-genesis

Explanation:
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Q:

What happens when some charge is placed on a soap bubble?

A) Its radius decreases B) Its radius increases
C) The bubble Collapses D) The bubble expands
 
Answer & Explanation Answer: B) Its radius increases

Explanation:
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Q:

The uranium fuel used worldwide is mainly in the form of 

A) U3O8 B) UO2
C) UF6 D) U metal
 
Answer & Explanation Answer: B) UO2

Explanation:
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