Question 1: a
Question 2: a
The answer is B. pace you reset so you are not talking too fast
It would be the answer A.
Answer is A) The rearrangement of atoms is a chemical change.
Ch4 +2O2 ⇒ CO2 +2H2O
(Methane + Oxygen → Carbon dioxide + Water)
Methane gas reacts with Oxygen, and it causes combustion, producing carbon dioxide and water vapor to Atmosphere.
