Question

It is difficult to burn a heap of Green Leaves but dry leaves catches fire easily explain

Answer 1

A heap of green leaves contains moisture in it, hence its ignition temperature is high. Therefore it is difficult to catch fire. But dry leaves have no moisture content in it, hence its ignition temperature is low. Therefore it catches fire easily.

Answer 2

Answer:

The green leaves hold some amount of water, so its ignition temperature gets increased and it does not burn easily. On the other hand, dry leaves are waterless, so they catch fire easily (having low ignition temperature).