When you breath in you breath in oxygen, which comes from plants, when you breath out, you breath out carbon dioxide, which is what plants breath.
This is a neutral atom of chlorine.
Answer:
I myself as an individual can reduce air pollution by driving less or riding a bike or walking instead of driving, driving wisely, use efficient lawn gardening equipment, take a bus or carpool, buying a car that has greater fuel efficiency, turning off lights and appliances when they are not in use, using energy efficient light bulbs and appliances, buying fewer things that are manufactured using fossil fuels. Choose the ones you are willing to do.
I think the answer is b because the small intestine has all three of the stomach, large intestine and liver.