Question

coal is a texture of what? ​

Answer 1

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• Electric room heaters are provided with a curved,polished surface behind the rod like heating element. this polished surface reflects back all the heat radiations falling on it ,concentrating it on forward direction.so that we feel even the heat even if stand a few feet away from the heater

Answer 2

Explanation:

The texture of anthracite coal (black coal) is rough in that it is a rock, but it has a smooth, almost slippery quality as well. This may be due to very fine crystal formation within the coal, or it may be because of the hydrocarbon molecular formula that comprises coal.