Pangea split during the Jurassic Period. There were dinosaurs in the Jurassic Period, which went extinct in the Cretaceous Period. Conifers and ferns were present in the Jurassic Period, but not in the Cretaceous Period.
Explanation:
A.chloroplast has chlorophyll trapping sunlight used to build.....
Humans disturb the earth and because of this, the earth is weakened.
Sweat (or sebum) and bacteria