I think it's agriculture.
In the year 1850, Rudolf Virchow was studying cells under a microscope, when he observed that cells were dividing and forming new cells. Realizing what he had observed, he understood that living cells reproduce new cells through division. Basing on his conclusion and realization, Virchow proposed that living cells came only from the other living cells.
Platinum: Mostly mined around that area.
Answer:
D. Opposite
Explanation:
The rocket engines lift a rocket from the earth because hot gases with high velocity .react against rocket and push it up.