Question

it is difficult to burn a heap of green leaves but dry leaves catch fire easily​

Answer 1

Answer:

Explanation:

Green leaves contain moisture whereas dry leaves do not contain moisture as a result, the ignition temperature of green leaves is higher than that of dry leaves.

Answer 2

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The green leaves contain some water due to which the ignition temperature of leaves increases and they do not catch fire easily while dry leaves have no water so they catch fire easily.