Light and noise are two ____ of pollution you may not immediately think of as a threat to biodiversity. Light pollution is ____ lighting that harms ecosystems. Bright streetlights and household security lighting that leak light into the night sky are the ____ source of light pollution and a waste of ____. Artificial nighttime glow has been linked to increased occurrence of skin cancer in organisms, as well as disruption of vital cycles that dictate sleep/wakefulness and migratory instincts. Noise pollution is ____ sound that can damage ecosystems and quality of ____. We contribute to noise pollution by driving cars, playing loud music, and operating other loud ____. Studies have shown that noise pollution is directly linked to reduced sleep times in humans and other animals, which increases stress, promotes disease, and increases the occurrence of mental illness. Noise from loud boat motors has also been shown to increase the likelihood of cardiovascular disease.

12A- U8- L7-8 -Pollution: Light and Noise - cloze test

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