I think the answer is bribery, but oil drilling is vital to the USA economy so it should not have been banned in the first place.
A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. Animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. Animal cells have a cell membrane, but NO CELL WALL.
The most efficient one, because everything is more fast than primary succession
USE SOCRACTIC IT WOULD REALLY HELP WITH QUESTIONS LIKE THIS !!