Martin and Emma live in a town that has bus lanes. Only buses can drive in bus lanes.

This means that at busy times buses travel faster than cars.
Buses and cars make carbon dioxide and other pollutants when they burn fuel.
Martin says there will be less air pollution as more people will travel by bus.
Emma says there will be more air pollution as a bus burns more fuel than a car.
Who is correct and why?

Martin is correct

Explanation:

Although a bus burns more fuel than a car, it also holds more passangers than one and when looking at the big picture, if more people decide to take the bus over driving their own cars, it's more likely that the busses will be the greener option.

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.