Final answer:
An electric bus with an open bottom can utilize wired systems, such as overhead wires or a "third rail" on the ground, to receive continuous electrical power and eliminate the need for large batteries. This allows the bus to operate all day and recharge overnight.
Step-by-step explanation:
An electric bus with an open bottom has a unique feature that allows it to take advantage of wired systems where electricity is transmitted through overhead wires or a "third rail" on the ground. This approach is commonly used in light rail systems and some cities have wires over their streets for trolley buses. By utilizing these wires, the bus can receive continuous electrical power and eliminate the need for large batteries. This makes it feasible for the bus to operate all day and recharge overnight.