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Practice Reading: Fill in The Blanks (Drag & Drop)
ID: #34215
Undesirable Substances
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There are a number of substances (toxic as well as non-toxic) which are being added to the environment by natural and human characteristics. These are, in fact, the undesirable consequences of modern civilization. These substances, which are continuously going into air, water, and soil, bring about undesirable in physical, chemical, and biological of our environment and the life of animals and plants.
events
aspects
possessions
stages
intentions
processes
changes
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