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 General Science Questions

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Q:

What did Edward Jenner pioneer?

A) Vaccination B) Electrocution
C) Dialysis D) Open heart surgery
 
Answer & Explanation Answer: A) Vaccination

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Q:

Which is the smallest planet in our solar system?

A) Mercury B) Mars
C) Jupiter D) Saturn
 
Answer & Explanation Answer: A) Mercury

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Q:

What is the name of the moon of Pluto?

A) Charon B) Ganymede
C) Luna D) Triton
 
Answer & Explanation Answer: A) Charon

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Q:

WHICH OF THE FOLLOWING IS not A RENEWABLE SOURCE OF ENERGY?

A) Wind energy B) Geothermal energy
C) Energy from fossils D) Solar energy
 
Answer & Explanation Answer: C) Energy from fossils

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Q:

What is organic matter in soil is also called

A) residue B) humus
C) occlusion D) compact
 
Answer & Explanation Answer: B) humus

Explanation:

In soil, organic matter consists of plant and animal material that is in the process of decomposing. When it has fully decomposed it is called humus. Soil organic matter serves as a reservoir of nutrients for crops, provides soil aggregation, increases nutrient exchange, retains moisture, reduces compaction,... 

This humus is important for soil structure because it holds individual mineral particles together in clusters.

 

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Q:

Which of the following technique is used to know the age of a tree in years?

A) Counting the number of branches B) Counting the number of tree rings
C) Measuring the size of the bark D) Counting the seasons of its flowering
 
Answer & Explanation Answer: B) Counting the number of tree rings

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Q:

Chinese spacecraft Chang’e 5 has returned to the Earth, carrying samples from which astronomical body?

 

A) Moon B) Sun
C) Jupiter D) Saturn
 
Answer & Explanation Answer: A) Moon

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Q:

Oparin's theory about 'Origin of life' is related to

A) biological evolution B) chemical evolution
C) artificial evolution D) physical evolution
 
Answer & Explanation Answer: B) chemical evolution

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