Which human activity has the most negative effect
environment?

mark me bainlest

Explanation:

The leakage of oil in oil carrying ships and the effect of atomic blast in oceans are affecting equally and have the most negative effect on the environment of oceans. Those are causing death of ocean creatures and causing lose of stability of life of oceans.

Over the last few decades, surplushuman activities have severely affected the marine life on the Earth's Oceans. Ocean pollution, also known as marine pollution, is the spreading of harmful substances such as oil, plastic, industrial and agricultural waste and chemical particles into the ocean.

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck