The answer is places and regions
Answer:
Scientists use the geologic time scale to illustrate the order in which events on Earth have happened. ... They used relative dating to divide Earth's past in several chunks of time when similar organisms were on Earth. Later, scientists used absolute dating to determine the actual number of years ago that events happened.
The United States is an example of Democracy.
They are narrower than the ones if the Atlantic and are not covered with thick layers of sediment.
The answer is A, four weeks (the lunar cycle is about 29.5 days).