Question

Rank the order of occurrences during the first 2 billion years of the Earth’s history.

Answer 1

Answer:

1. earliest evidence of liquid water

2. oldest rock sample

3. first chemical signature of life

4. first cratons

5. oldest undisputed fossils

Explanation:

Earliest evidence of liquid water (4.40 Ga)

Oldest rock sample (4.03 Ga)

First chemical signature of life (3.8 Ga)

The first cratons (3.2 to 2.7 Ga)

Oldest undisputed fossils (3.2 Ga)