The Environmental Impact of Plastic Bags
Plastic bags represent a significant threat to the environment, humans, and animals. It is estimated that somewhere between 500 billion and a trillion plastic bags are used worldwide each year. It takes a great deal of precious, non-renewable resources, such as oil and natural gas, to produce them. In addition, plastic bags are not biodegradable, meaning they do not readily break down. The result is an excessive build-up when they are dumped in landfills or harmful air pollution if they are burned. The bags contain toxic chemicals that can leak into the soil and water, creating serious health risks for both animals and humans. Likewise, animals can accidentaly eat the bags, making them sick or even killing them.

Now listen to part of a lecture on this topic in an environmental studies class.
Directions: Record your response to the following prompt.
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1. Explain how the examples discussed by the professor relate to the environmental impact of plastic bags.
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