According to the online content article about densely populated cities, what problems are cities facing because of cars and traffic? A.
more air pollution
B.
less population growth
C.
more open spaces
D.
less urbanization

Please select the best answer from the choices provided
A
B
C
D

What is a compass? how does it work

The difference(s) between the grand canyon and valles marineris is/are: (a) the grand canyon was formed by water, but valles marineris was not. (a) valles marineris is much longer than the grand canyon. (c) valles marineris is much wider than the grand canyon. (d) valles marineris has large volcanoes near it. all of the above

How do oceanographers measure the salinity of ocean water?