Question

1. What length of time does the geologic time scale cover?
a. 2.0 million years
b. 4.6 billion years
c. 20.5 billion years
D. 10.1 million years

2. The largest expanse of time on the geologic time scale is the____.
a. Eon
b. Epoch
c. Era
d. Period

3. Which eon of the geologic time scale means "visible life"?
a. Phanerozoic
b. Proterozoic
c. Hadean
d. Archean

Answer 1

1. B – This is a scheme of chronological dating that tells geological strata to time. 2. A – Eon is the main division of the geologic time scale, distances hundreds to thousands of millions of years. 3. A – Phanerozoic Eon is the present geologic eon in the geologic time scale, and the one throughout which plentiful animal and plant life has occurred.

Answer 2

Answers

1. b. 4.6 billion years

2. a. Eon

3. a. Phanerozoic

Explanation

Q1

The length of time the geologic time scale cover is 4.6 billion years

Q2

The largest expanse of time on the geologic time scale is the eon

Q3

Phanerozoic means visible life.