Final answer:
The statements that represent possible problems in the list titled Overcrowded City Streets are traffic congestion, noise pollution, air pollution, and the need for carpooling.
Step-by-step explanation:
The statements that represent possible problems in the list titled Overcrowded City Streets are:
a) The city streets are overcrowded with cars.
b) There is a lot of noise pollution.
c) The air is becoming polluted.
d) People should carpool to school and work.
These statements highlight the problems of traffic congestion, noise pollution, and air pollution on overcrowded city streets. They also suggest solutions, such as carpooling, to address these issues.