A Visit to the City
Mang Tibo had not visited the city lately. Everytime he
came to the city, he would write
his son to pick him up in
the station. Because he wanted to surprise his son, he did not
write him about his coming this time.
Mang Tibo was surprised to see the many changes in the
city. When he got down the bus, he did not know where to go.
Air Pollution
Today, in most cities smoke and exhaust
fumes fill the air and endanger the health and wellbeing of the people. Smoke and exhaust fumes
contain harmful by-products from gasoline burned
in cars and from factories.
Air pollution or smog is a serious problem in
some cities. Smog consists of smoke and exhaust
fumes mixed with fog.
To control air pollution, smoke ordinances
have been passed. Smoke-belching
Vehicles are checked and factories are required to
reduce fumes emanating from them.