I can't be part of the gas station because I'm a gas that plants need. What do I do? It's a question. I think what they're saying is that it's not actually gas, but American people like to call it gas. The thing we put in our cars is usually liquid, but gas has some air in it. Plants need co. I think the answer is probably photosynthesis. Oxygen is needed for cellular respiration. Photos are similar to the big ones. If you're trying to fill up your tire, you can probably get it done by air at a gas station. You can buy a gas station. I think they mean C. 2. That should be the answer. This is a picture. They take SOO two in the sun and use it to make sugars and then use it to make oxygen. So also is the answer.