Transportation can help people move around faster and it saves people lots of time and energy for other much useful things. Transportation also helps other goods such as food, clothing, and other supplies to get to markets and stores faster. This helps keep the economy running and people are able to spend and and earn money which keeps the economy strong. Communication helps keep the economy stable. With communication, there is less room for any major mistakes and it if there is any slip up, like a transportation vehicle running out of gas they can use communication to get help.
I hope you got a good grade on your assignment! ^w^