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 General Science Questions

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Q:

The warm and cold ocean currents are caused by

A) Prevailing winds B) Earth's rotation
C) Variations in density of sea water D) All of these
 
Answer & Explanation Answer: D) All of these

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Q:

Pollination by wind is called?

A) Hydrophily B) Pollinophily
C) Anemophily D) Herbophily
 
Answer & Explanation Answer: C) Anemophily

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Q:

Which one of the following statements with regard to volcanoes is not correct?

A) Stratovolcanoes produce lava flows that initially follow valleys but are highly resistant to erosion. B) The surrounding areas can remain highlands, lava ridges or mesas.
C) Hawaiian shield volcanoes are eroded by steams that form deeply carved valleys with steeply sloping heads. D) The system of streams on a dissected volcano cone is not a radial drainage pattern.
 
Answer & Explanation Answer: D) The system of streams on a dissected volcano cone is not a radial drainage pattern.

Explanation:

Stratovolcano,    also    known    as acomposite  volcano,  is  aconical volcanobuilt  up  by  many  layers (strata) of hardened lava, tephra, pumice and ash. Because it is stratified, therefore  it  will  definitely  form  a volcano cone.

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Q:

Which  one  of  the  following  statements  is not correct?

A) Pavo  cristatus  is  the  national  bird  of India. B) Nelumbo nucifera gaertn is the national flower of India.
C) Ficus  benghalens is  is  the  national  tree of India. D) Mangifera  indica  is  the  national  animal of India.
 
Answer & Explanation Answer: D) Mangifera  indica  is  the  national  animal of India.

Explanation:

All   are   correct   except   D,   as Mangifera  indica  is  scientific  name of Mango

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Q:

What is the source of natural energy of the hot springs at Manikaran in Himachal Pradesh ?

A) Geothermal Energy B) Biomass Energy
C) Thermal Energy D) Hydro Energy
 
Answer & Explanation Answer: A) Geothermal Energy

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Q:

Charcoal can be made at home by burning

A) wood in absence of air B) coal in absence of air
C) coal in an insufficient supply of air D) wood in an insufficient supply of air
 
Answer & Explanation Answer: A) wood in absence of air

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Q:

Which of the following metals is stored in kerosene oil?

A) Copper B) Sodium
C) Platinum D) Gold
 
Answer & Explanation Answer: B) Sodium

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Q:

Which of the following is the treatment of water pollution?

A) Bag house filter B) Windrow composting
C) Venturi scrubber D) Reverse Osmosis
 
Answer & Explanation Answer: D) Reverse Osmosis

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