Question

briefly explain marine pollution​

Answer 1

Answer:

Explanation:

Marine pollution is a combination of chemicals and trash, most of which comes from land sources and is washed or blown into the ocean. This pollution results in damage to the environment, to the health of all organisms, and to economic structures worldwide.

Answer 2

THE OCEANS ARE so vast and deep that until fairly recently, it was widely assumed that no matter how much trash and chemicals humans dumped into them, the effects would be negligible.

Today, we need look no further than the New Jersey-size dead zone that forms each summer in the Gulf of Mexico, or the thousand-mile-wide belt of plastic trash in the northern Pacific Ocean to see that this early “policy” placed a once flourishing ocean ecosystem on the brink of collapse.

Ocean water covers more than 70 percent of the Earth, and only in recent decades have we begun to understand how humans impact this watery habitat. Marine pollution, as distinct from overall water pollution, focuses on human-created products that enter the ocean.

Before 1972, humans around the word spewed trash, sewage sludge, and chemical, industrial, and radioactive wastes into the ocean with impunity. Millions of tons of heavy metals and chemical contaminants, along with thousands of containers of radioactive waste, were purposely thrown into the ocean.

Causes of Ocean Polution:

• Sewage: Sewage or polluting substances flow through sewage, rivers, or drainages directly into the ocean

• Toxic Chemicals From Industries:Industrial waste which is directly discharged into the oceans, results in ocean pollution.

• Land Runoff: Land-based sources (such as agricultural run-off, discharge of nutrients and pesticides and untreated sewage including plastics) account for approximately 80% of marine pollution

• Large Scale Oil Spills: Pollution caused by ships, is a huge source of ocean pollution, the most devastating effect of which is oil spills.

• Ocean Mining: Ocean mining sites drilling for silver, gold, copper, cobalt, and zinc create sulfide deposits up to three and a half thousand meters down into the ocean.

How to prevent Ocean pollution?

• Implement renewable energy sources, such as wind or solar power, to limit off-shore drilling.

• Limit agricultural pesticides and encourage organic farming & eco-friendly pesticide use.

• Proper sewage treatment and exploration of eco-friendly wastewater treatment options.

• Cut down on the industry and manufacturing waste and contain it into landfills to avoid spillage.

• At individual level reduce carbon footprint by adopting a "green" lifestyle.

• Have a global treaty on banning single-use plastics and collaborated effort to clean up the ocean