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It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.

9. It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.

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It is difficult to burn a heap of green leaves but dry leaves catch fire easily because green leaves have moisture present in them. Hence the heat gets absorbed by water to provide energy to evaporate. But, the dry leaves have no moisture and hence the heat is not lost. That is why it catches fire easily.

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