Burning fossil fuels has been considered controversial since it produces tons and tons of CO2 and CO2 is considered a green house gas which is contributing to climate change.
Photosynthesis and planting trees actually sucks Carbon dioxide out of environment. Perspiration doesn't produce CO2.
I didnt understand ur question if u thought it was D or if that was a smile face why u would smile but I'm going to say B because the bars on the grill are touching the food and transfering heat
