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8E1 - U7: Getting started
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The sight of too many telephone poles, advertising billboards, overhead power lines, or shop signs may cause _______.
visual pollution
_______ occurs because there are too many loud sounds in the environment.
noise pollution
_______ happens when human activities destroy the Earth’s surface.
land / soil pollution
_______ is the contamination of lakes, rivers, oceans, or groundwater, usually by human activities.
water pollution
Too much use of electric lights in cities may cause _______.
light pollution
When radiation goes into the land, air or water, it is called _______.
radioactive pollution
_______ occurs when the atmosphere contains gases, dust, or fumes in harmful amounts.
air pollution
When _______ happens, the water temperature in streams, rivers, lakes, or oceans changes.
thermal pollution
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