Plants breathe in carbon dioxide (CO2) and give off water vapor and oxygen.
Reptiles have lungs.
to go under water and breate
All mammals, including humans, are equipped with lungs with which they breathe.
Plants release oxygen as a waste gas.
There is only one gas. It is the CO2 gas.
Because you need oxgeyn so u can breate and live
Plants give off oxygen gas in the light.
plants get there energy from sun
The gas that plants need for photosynthesis is carbon dioxcide it is the only gas they take in.
Plants release oxygen gas (O2) into the atmosphere as a byproduct of photosynthesis.
It is about the photosynthesis. it reduce O2 gas.
I think its methane gas