The Proterozoic division of the geological time scale is an era of the Phanerozoic eon. The Proterozoic division began 2.5 billion years ago and ended 542.0 million years ago.
Answer:
B. seasonal temperature changes
Explanation:
A shallow lake can be dried up in the summer by extreme heat and can freeze over in the winter due to cold. Also I just took this test and this was the answer
Answer:
you have to pay for school vs you pay bills
Explanation:
