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 General Science Questions

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Q:

What is the name of the spacecraft launched in 2019-20 by ISRO to study the sun?

A) Surya B) Aditya
C) Ravi D) Bhaskar
 
Answer & Explanation Answer: B) Aditya

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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:

All of the following are true about ecosystems except

A) they represent the lowest level of biological organization that is known B) there is a transfer of energy through the system and it is lost
C) the ultimate source of energy is the sun for nearly all known ecosystems  D) they contain both living and nonliving components
 
Answer & Explanation Answer: A) they represent the lowest level of biological organization that is known

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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:

‘Altitude sickness’ is caused at high altitude due to

A) high partial pressure of oxygen B) low partial pressure of oxygen
C) low level of haemoglobin D) high partial pressure of carbon dioxide
 
Answer & Explanation Answer: B) low partial pressure of oxygen

Explanation:

Altitude sickness, the mildest form being acute mountain sickness (AMS), is the negative health effect of high altitude, caused by rapid exposure to low amounts of oxygen at high elevation.

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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 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:

Biofortification is a ________________ .

A) method of breeding crops to increase their nutritional value B) strategy to combat unwanted nutrients in plants
C) method of developing resistance to insect pests D) method of plant breeding for disease resistance
 
Answer & Explanation Answer: A) method of breeding crops to increase their nutritional value

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