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ANSWER
THESE ARE SOME DIFFERENT ANSWERS
1. the climate has cooled and has became less humid
2. Grass started growing across the world.
3. the dense forest has developed
Explanation:
Dense forests started to develop during our current era is how the earth has shown changes.
What is Forest?
This is defined as the area of land which is dominated by trees and serves as inhabitants for some organisms in the ecosystem.
With time, the earth changed by the forests becoming denser when compared to previous eras.
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