Question

put the letter of the answer. *
level 2
which of the following does not add
co₂ to the atmosphere?
a. cooking with gas
b. planting trees
c. burning wood
d. riding in a bus

Explanation:

• Option A: Cooking with gas involves combustion of gas, which releases \( \text{CO}_2 \) into the atmosphere.
• Option B: Planting trees involves photosynthesis, where trees take in \( \text{CO}_2 \) from the atmosphere and release oxygen, so it does not add \( \text{CO}_2 \).
• Option C: Burning wood is a combustion process that releases \( \text{CO}_2 \) into the atmosphere.
• Option D: Riding in a bus (using fossil fuel - based engines) involves combustion of fuel, releasing \( \text{CO}_2 \) into the atmosphere.

Answer:

B. Planting trees