This is the specific type of contamination, or poisoning, of lakes, rivers, oceans, and other bodies by harmful compounds such as raw sewage and industrial chemicals.
what is this called?

Water pollution is the correct answer.

Explanation:

When the waste, chemicals and other particles pollute a water body and it becomes harmful for the fish and animals that depend on water for their needs. The pollution can disrupt the water cycle. It can occur due to natural and man made causes. Natural causes are volcanoes, algae booms and silt from storms and floods while Human causes include sewage, pesticides, fertilisers, waste water and chemicals and silt construction form sites. Water pollution can severely affect the marine organisms as it can reach a point where there inst enough oxygen in the water for the fish to breathe. It can also affect the entire food chain.

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