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.
By reversing the direction of the current.
The sun is made out of Hydrogen.
The probability of two independent events occurring together is the Quotient of the probability of each event occurring separately.
