Final answer:
Photosynthesis is the process that removes carbon dioxide from the atmosphere.
Step-by-step explanation:
Carbon dioxide is removed from the atmosphere through the process of photosynthesis. During photosynthesis, plants convert carbon dioxide into organic compounds, releasing oxygen as a byproduct. On the other hand, respiration releases carbon dioxide back into the atmosphere, as living organisms break down organic compounds to obtain energy. The burning of fossil fuels actually adds more carbon dioxide to the atmosphere, contributing to global warming.