- Directions: Read the following passage, and then fill in the table with the information based on the passage. Write your answer on the ANSWER SHEET. (10%)
The comforts and conveniences of modem life have brought with them problems that did not exist in the days of simpler living. Machinery which operates on electricity made by burning coal or petroleum is used to process raw materials taken from the earth. Gases from the burning fuels are sent into the air. Wastes from making raw material into finished products are sent both into the air and into the water.
As a result of these and of other pollutants some lakes and rivers have become so contaminated that the fish in them die. Besides the dangers to health from breathing polluted air, the waste gases have effects on the upper atmosphere, which may endanger life on earth.
These threats, as well as the depletion of natural resources (such as fuels, forests, and soil)
by carelessly wasteful use, have worried scientists and other thoughtful people. Such persons are also disturbed about the effects of chemical fertilizers and of poisons which farmers use in order to destroy insects and weeds. Above all they are alarmed at the interference with the natural balance of the environment, and its possible consequences.
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