In this world there are many areas where pure water is not
available for people. Many people suffer with diseases because of impure water.
Science is always serve humanity with its invention. A water filter is a tool which provide us pure water.Science gives us many new
gadgets and tools by which we can purify water like filtration plants, some
plants which converts salt water into normal water etc. These plants are huge
and are for commercial use due to this require big investments and planning.
These huge water filtration plants can't be seen in poor countries because they
don't have much amount of capital.
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