Planting tree is very important. Some people say that trees should be planted in the vacant areas of cities and town, while others says that housing facilities should be built instead.

Housing

facilities

play a crucial role in modern society. Recently, housing

facilities

have improved the way of human life. These housing

facilities

include museums,

libraries

, galleries and movie

theaters

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theatres

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. Clearly, it is beneficial for human beings to build housing

facilities

though the drawback is that these housing

facilities

may cause damage to the natural

environment

. Humans benefit from housing

facilities

though more housing

facilities

will contaminate the ecological system of the

environment

.

That is

, the more housing

facilities

humans build, the more contaminants the

environment

will have. In urban cities and towns, there are many

libraries

and movie

theaters

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theatres

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. People can read a variety of books or do their work quietly in

libraries

. For readers, they are able to understand immense thoughts and ideas from books in

libraries

.

Moreover

, a diversity of movies including science, education, and history are shown in movie

theaters

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theatres

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. These movies can broaden viewers' knowledge about the world

or

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of

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nature.

However

, these housing

facilities

need a great deal of electrical power to light bulbs and turn on air conditioners. The electricity will be generated by coal, water and nuclear power. These

materials

are detrimental to the

environment

. In order to reduce contaminants, people should plant more

trees

in the vacant areas of cities and towns. Local governments are supposed to establish a law to control harmful

materials

for generating electricity. What’s more, authorities of housing

facilities

need to set up rules to maintain the usage of power for protecting the

environment

. In that way, there will be not only more

trees

to make air fresh but

also

less damage to the ecology. In conclusion, housing

facilities

are actually helpful to civilized society though they may impact the

environment

by

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with

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harmful

materials

. If people are willing to plant more

trees

and governments establish legislation to control detrimental

materials

, individuals will benefit from housing

facilities

and fresh air made by

trees

.