Answer:
Plants take in carbon dioxide and breath out air
Explanation:
Plants do not need oxygen, but they do carbon dioxide. On a planet with low oxygen levels, plants would be very benificinal.
Explanation:
I believe it is the last answer/D
Answer:
Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.
Explanation: