Question

1. which one of these does not add co2 to the atmosphere?

riding in a bus
burning wood
planting tree
cooking with gas

Explanation:

Burning wood and cooking with gas release CO2 as they are combustion - based processes. Riding in a bus may also contribute to CO2 emissions depending on the fuel source. Planting trees absorbs CO2 through photosynthesis and does not add it to the atmosphere.

Answer:

planting tree