Smoke is a product of what being burned?
an object oxygen engines trees Oak energy Cooking Cars
A B C D E F G H
Smoke from fires contains heat and the products of burning.
Smoke is a product of oxygen being burned.
Smoke is a product of what being burned? (A) an object (B) oxygen (C) engines (D) trees (E) Oak (F) energy (G) Cooking (H) Cars