PIMSO 2025 - Science - Secondary 2 - National Round Question 24

Question 24

Some scientists have been proposing a change in the earth’s official geological timeline to include the unit “Anthropocene” which would be based on which of the following developments?

When humans started to walk uprightly
When humans started to think complexly
When humans started to initiate alterations on the environment
When humans started to document the ways of life