Convection Current
This happens when there is a noteworthy contrast in temperature between two sections of a liquid. At the point when this temperature distinction exists, hot liquids rise and cool liquids sink, and after that streams, or developments, are made in the liquid
I believe it was The Continental Drift Theory , i could be wrong
Answer:
Nuclear energy can be used and controlled and it is more efficient than other forms. I would say B.
D. Bacteria because “bacteria” is actually a domain itself