Which type of vegetation absorbs the most CO2, rain forest or flat grass?
The other answers seem to be confusing CO2 absorption with CO2 storage, the question is not asking about storage. Rainforests and woodland are good CO2 sinks as the trees contain large carbon stores in their trunks etc as previously identified above, but once a rainforest or woodland is mature it does not take up much CO2, as trees must die (and then rot, releasing CO2) to make way for new trees to grow, so the net usage of CO2 is negligable. Most grasses are C4 plants which are much better adapted to capture CO2 and convert it to useable carbon compounds than C3 plants (rainforest plants are C3 plants), in this respect grasses are better at ABSORBING CO2, in the same time period and area. A grassland is not good at storing it, as stated above, seasonally grasses tend to die releasing their CO2 back into the atmosphere, but storage was not the question, so I believe the correct answer is grass. The question askes “of the same area” both rainforest and grass of the same area are absorbi
