Traffic jams.
yes, they are a big country with big cities.
In traffic fumes, various greenhouse gases are released. These gases cause ozone problem as ozone is also a gas released.
yes
yes
It is.To reduce traffic and air pollution.
25a. Air pollution normally increases along with population growth. This increasing pollution is a big problem for many cities. 25b. Air pollution normally increases along with population growth. This is a big problem for many cities. Which is a vague pronoun?
You can be cut off from towns and cities. If it snows, there will be no possible way for you to get supplies. There is also the fact that you can end up in the middle of no-where, with hardly any public transport.
All cities experience congestion in traffic at some point, but this is to be expected wherever you get large volumes of traffic in small areas. Many do not have a large amount of congestion, and it is often restricted to certain times. Others experience near-constant congestion and those areas work on ways of reducing it.
"jay" was given to people new to big city life. in the early 1900's people new to big cities were not familiar with new traffic patterns of the increasing vehicle traffic and were given the name jaywalkers for crossing in between lanes of traffic. jay......meaning inexperienced person and the word walk, jaywalking
There would be more barge traffic on the cities on the Danube system because the barge traffic from the cities on the Rhine would be added to the barge traffic of the Danube.
big cities are cool to look at. big cities do not have a lot of trees.etc