Question

answer this question pls its urgent​

Answer 1

Hi friend!

In picture A, the substance undergoes incomplete combustion while in picture B, no combustion takes place due to the absence of air.

Reason:

This is because, in the first case, the substance gets a lot of air for combustion while in the second case, as the wood is covered with clay, combustion is difficult due to the absence of air.

Hope it helps you!!!

Answer 2

Answer:   This is because, in the first case, the substance gets a lot of air for combustion while in the second case, as the wood is covered with clay, combustion is difficult due to the absence of air.

Explanation: