Electric buses and trains that run on electricity are using sustainable sources of energy if (select the best answer.)

the bus or train used to use diesel fuel

the electricity is produced from a renewable energy source

the amount of fossil fuels used is less than ferries

the amount of greenhouse gases released is less than airplanes

This is the mountain range known as the alps. which of these statements regarding the alps is true? a) the alps are the largest mountain range in asia. b) the alps protect the roman empire from invasion. c) the alps were key in preventing england from being conquered in warfare. d) the alps prevented the roman empire from taking control of most of europe.

According to your text, systems of government in the united states are shifting from what to what?

What impact does geography have on where people live in brazil?