please answer this question please please please please please please...........
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6
Answer:
the answer of 1st question is:
Explanation:
a piece of stone.....
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2
Answer:
8 D)
9 B)
10 A)
11 D)
Explanation:
8) A non combustible substance is that which is not capable of igniting and burning.
9) Ignition temperature is a point at which it burns
11) Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not. It does not catch fire when wrapped around aluminium pipe because aluminium absorbs the heat, so paper does not attain its ignition temperature.
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