Please help me with this science problem

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline. which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?