NEET BIOLOGY

Detailed explanation-1: -Answer. Explanation: From big pieces of garbage to invisible chemicals, a wide range of pollutants ends up in our planet’s lakes, rivers, streams, groundwater, and eventually the oceans.

Detailed explanation-2: -All forms of pollution eventually make their way to water. Air pollution settles onto lakes and oceans. Land pollution can seep into an underground stream, then to a river, and finally to the ocean.

Detailed explanation-3: -Most ocean pollution begins on land. Much of this runoff flows to the sea, carrying with it agricultural fertilizers and pesticides. Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff.

Detailed explanation-4: -Chemical contamination, or nutrient pollution, is concerning for health, environmental, and economic reasons. This type of pollution occurs when human activities, notably the use of fertilizer on farms, lead to the runoff of chemicals into waterways that ultimately flow into the ocean.

Detailed explanation-5: -Plastic waste makes up an estimated 80% of marine pollution. About 10 million metric tons of plastic waste enter the oceans each year, killing seabirds, fish, and marine mammals.