Question

there is a lot of smoke when _____wood it burnt​

Answer 1

Answer:

There is a lot of smoke when the wood is burned.

Explanation:

Answer 2

Excess smoke is a sign of incomplete combustion. If the wood doesn't burn completely, it will release airborne particulate matter in the form of smoke. You can reduce the amount of smoke produced by your wood-burning fires, however, by following these tips.