How many million years ago did the era in which you live begin

What is the process by which better suited organisms survive and reproduce

What is the next smaller division of geologic time after the era

When did the most recent ice age occur

During what time period did the dinosaurs live

The record of events in Earth history is called the

The largest subdiviions of geologic time scale

A group of individuals that normally breed only among themselves

The supercontinent that was formed when all the continents were connected is called

The time period that lasted about 4 billion years

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