.5 of a micrometer in width
2 micrometers in length
Answer:
approximately 4.5 billion years ago
Explanation:
Physical chemists study matter and energy, and there is chemical reactions in your body, and all living things have elements, like carbon.
I would say D
Small rivers and streams may join together to become larger rivers. Eventually all this water from rivers and streams will run into the ocean or an inland body of water like a lake.
