What is the hazardous or dangerous waste which accumulates as it makes its way up the food chain?

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Chemical pesticides and herbicides accumulate and become more concentrated as they move up the food chain. This is known as biomagnification and can lead to serious health issues for top predators who consume contaminated prey. Asbestos and engine oil are also hazardous wastes, but they do not accumulate in the food chain. Plastic bottles and tin cans are not hazardous wastes, but they contribute to pollution and can harm wildlife in other ways.

What Is the Hazardous or Dangerous Waste Which Accumulates as It