Answer:
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 geologic time scale is divided into eons, eras, periods, and epochs.
Explanation:
it's difficult to cure because there are so many varying strains that are slightly different
Molecules is the answer to your question
Our emotional state influences our ability to see, and hear whats happening around us.
Whether your are alone or with a group of people.
The number of people/objects.
What type of activity/how much activity.
