Question

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

Answer 1

Answer:

Green leaves have a lot of chlorophyll and moisture in them. This moisture does not allow them to catch fire easily when a heap of green leaves are burnt. However, dry leaves have no moisture or water content in them. Therefore, the heap of dry leaves catch fire easily.

Answer 2

Answer:

A pile of green leaves contain a great deal of dampness in them, thus its combustion starts only when temperature is high. But in case of dry leaves, they do not have water content in them, their starting temperature is low and hence they catch fire easily.

Explanation:

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