The world itself is becoming much smaller by using modern traffic and modern communication means. Life today is much easier than it (1)
was
was
hundreds of years ago,(2)
but
but
it has brought new problems. One of the (3)
biggest
biggest
(big) is pollution. Pollution comes in many(4)
forms
forms
(form).We see it, smell it, drink it and even hear it.
Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious(5)
because
because
there were not so many people. When the land(6)
was used
was used
(use)up or the river was dirty in one place, man moved to another place. But this is no longer true. Man is now(7)
slowly
slowly
(slow) polluting the whole world.
Air pollution is still the most serious. It's bad for all living things in the world. Water pollution kills our fish and pollutes our drinking water. Noise pollution(8)
makes
makes
(make) us angry more easily.
Many countries are making rules(9)
to fight
to fight
(fight) pollution. They stop people from (10)
burning
burning
(burn)coal in houses and the factories in the city, and from putting dirty smoke into the air.