asked 188k views
4 votes
Improved transportation systems have resulted in

asked
User Kivan
by
7.6k points

1 Answer

3 votes
Much pollution fills the air because of train s which let off steam that contains chemicals.
answered
User Dtbarne
by
8.2k points

No related questions found

Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.