Biology, asked by GhazoolJoodallah, 10 months ago

Identify four ways in which people have destroyed food chains.

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Answered by Anonymous

Answer:

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A loss of organisms on higher trophic levels, such as carnivores, can also disrupt a food chain. In kelp forests, sea urchins are the primary consumer of kelp. Sea otters prey on urchins. If the sea otter population shrinks due to disease or hunting, urchins devastate the kelp forest.

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Answered by ranaabhi1103

Answer:

Deforestion

Our forests are the earth's lungs. They look beautiful, soak up carbon dioxide, produce oxygen and clean our air. They consume gallons of water, limit flooding, minimize soil erosion and help regulate local climates. They're also the natural habitat for thousands of insects, birds, mammals and communities of people. This orangutan is swinging through the trees in Kuching, Malaysia. Yet acres of forest are destroyed daily.

Fishing to extinction

For eternity our water systems have been seen as an endless source of food, but now in many parts of the world more fish are being caught than can be replaced through natural reproduction. As a result fishing is becoming unsustainable in some lakes, rivers and seas across the planet. This impacts on the natural ecosystem in the area being fished and can lead to entire species of fish becoming extinct.

Global warming

The burning of fossil fuels such as coal, natural gas and petroleum releases carbon dioxide into the atmosphere. Deforestation also contributes to a rise in carbon dioxide in the atmosphere, as there are fewer trees to soak it up. Intensive farming of livestock, particularly sheep and cattle, produces an excess of methane in the atmosphere, which is also a greenhouse gas, and farming fertilizers release nitrous oxide, another greenhouse gas. All of this contributes to global warming.

Hunting endangered animals to extinction

Wildlife crime is big business. Hundreds of millions of dollars change hands for animal parts. These are trafficked in the same way as drugs and arms. This Illegal and unsustainable trade puts already endangered species on the brink of extinction. Some rare wildlife is also traded legally. Wild plants and animals are caught or harvested and then legally sold as food, pets, ornamental plants, clothing, tourist souvenirs and medicine.

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