Nina visited a place and she saw a ‘green house’. She asked her father why is it called the "greenhouse" in spite of having a glass covering? Choose the best possible explanation.
a. The glass walls do not support growth of plants.
b. It is covered with a green glass.
c. It keeps the environment green.
d. The glass walls perform functions similar to greenhouse gases
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Answer:
c) it keeps the environment clean
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The answer for the given riddle is pencil.
Explanation:
The hints for the riddle are iam from a mine and wood is major hint.
Generally natural resources like coal, diamond, graphite, iron are from mines.
In the above natural resources generally graphite is surrounded by wood and daily used by us as pencil for writing.
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