Question

Burning of green leaves takes longer time as compared to burning of dry leaves. Which of the following are the reasons behind this?

• A. Green leaves have lower ignition temperature
• B. Green leaves have higher ignition temperature
• C. Water quantity in green leaves is lesser than dry leaves
• D. Water quantity in green leaves is higher than dry leaves

Answer 1

Answer: (B), (D)

The correct options are
B Green leaves have higher ignition temperature
D Water quantity in green leaves is higher than dry leaves

Green leaves contains a lot of moisture content and has very high ignition temperature. As water is a natural fire extinguisher, it does not allow green leaves to catch fire easily. Whereas, dry leaves contain less or no moisture. Hence, they have low ignition temperature. Thus, dry leaves catch fire easily as compared to green leaves.