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Den Vopjan
Ecology is the study that helps to preserve the Earth, its plants and
animals. It is also supposed to study the environment and the
relationship between human activities and nature. Until recently this
relationship was in balance. However, at present times we have to face
such ecological problems as acid rain, global warming, loss of rare
species, ozone reduction, etc. Many scientists think that it is
connected with industrial boom and development of civilization in the
world. Building numerous factories people have started to interfere
intensively in nature. Every year world industry pollutes the atmosphere
with tons of dust and other harmful things. As a result many species of
animals and plants disappear forever, including fish and birds. Many
large cities suffer from factory smog. Their activity pollutes the air,
the water, the forests and the land. Apart from factories there are lots
of vehicles in the streets of every more or less developed city. It
includes cars, motorbikes, buses, minivans, trucks and other types of
transport which use fuel. First of all, they exhaust toxic gases into
the air. Secondly, they are considered to be the main noise offenders in
the city. This problem progresses as the number of cars increases from
year to year. As a result the level of harmful substances in the air
also increases. Another problem which is worth mentioning is the tree
cutting. Trees are a source of oxygen and clean air. So, by doing this
people simply violate the biological balance. All the above mentioned
ecological problems are the result of mans careless interaction with
nature. In my opinion, environmental protection should become of a
global concern and serious measures should be taken to create ecological
security.
Колисник
Руслан
спасибо
Строчило
Арсений
не за что
Vasilij Gorelchenko
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