Questions

Q:

After cleaning the thermometer should be placed in

A) Sanitizer B) Ice cold water
C) Mercury D) None of the above
 
Answer & Explanation Answer: A) Sanitizer

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Q:

Name one problem that led to the civil war.

A) Slavery B) Economic reasons
C) State's Rights D) All the above
 
Answer & Explanation Answer: D) All the above

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Q:

In photosynthesis________

A) Light energy is converted into chemical energy B) Chemical energy is converted into Light energy
C) Chemical energy is converted into electrical energy D) Light energy is converted into Mechanical energy
 
Answer & Explanation Answer: A) Light energy is converted into chemical energy

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Filed Under: Biology

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Q:

Podsol is a type of soil which is characteristic of a region under the cover of _________forest

A) deciduous B) coniferous
C) evergreen D) alpine
 
Answer & Explanation Answer: B) coniferous

Explanation:

It develops in a region of  moderate rainfall and limited evaporation. It is agriculturally a poor soil but addition of lime and fertilizers would yield favourable results. Found extensively in northern Canada and northern Russia.

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Q:

Radiocarbon is produced in the atmosphere as a result of

A) collision between fast neutrons and nitrogen nuclei present in the atmosphere B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere D) lightning discharge in atmosphere
 
Answer & Explanation Answer: A) collision between fast neutrons and nitrogen nuclei present in the atmosphere

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Filed Under: Physics

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Q:

Plants are photoautotrophs. What does this mean?

Answer

Photoautotrophs are those organisms that can make their own food using sun light with the help of the process of photosynthesis.


Plants can prepare their own food using sunlight. Hence they are Photoautotrophs.

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Q:

The ratio of gross cropped area to the net sown area is called

A) cropping intensity B) intensity of crop rotation
C) crop productivity D) cropping diversity
 
Answer & Explanation Answer: A) cropping intensity

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Q:

Which of these statements is true of the kingdom protista?

A) All are unicellular B) All are hetertrophic
C) All are autotrophic D) All are eukaryotic
 
Answer & Explanation Answer: D) All are eukaryotic

Explanation:

Protists are eukaryotic organisms that cannot be classified as a plant, animal, or fungus. They are mostly unicellular, but some, like algae, are multicellular.

which_of_these_statements_is_true_of_the_kingdom_protista1536211148.jpg image

Kelp, or 'seaweed,' is a large multicellular protist that provides food, shelter, and oxygen for numerous underwater ecosystems.

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