When these sea creatures die, their POP-riddled bodies sink to the ocean floor, where deep-sea marine life eat their remains. POPs are therefore transferred to other creatures along the food chain. The Mariana Trench is many miles away from any industrial source. This suggests that these ...
Mariana Trench map: Map showing the geographic location of the Mariana Trench in the Pacific Ocean. Image from the CIA Factbook. ADVERTISEMENT Measuring the Greatest Ocean Depth The Challenger Deep in the Mariana Trench is the deepest known point in Earth's oceans. In 2010 the United States ...
Another Norwegian Lake, Salvatnet lies on the west coast of the country, close to the Atlantic Ocean. Scientists believe that the lake was connected to the ocean until about 3,000 years ago, and that an ancient layer of saltwater at the bottom of Salvatnet is an artifact from that time....
deepest river in the world.This river runs for about 2,920 miles 80.before going into the Atlantic Ocean.The river runs 81.through several African countries.Because the Congo River runs around the equator(赤道),the water in this river is usually 82.warm.That is different from the water in...
【题目】阅读理解The planet's deepest pointis in the Pacific Ocean's Mariana Trench(马里亚纳海沟), which lies miles belowthe sea surface. According to a new study published in Nature Ecology & Evolution, even in this remote area,creatures cannot escape pollution.A team of researchers recently...
Lake Superior is so vast, in fact, that the sun reportedly sets about 35 minutes later on its western shore than it does on its southeastern shore. Fed by hundreds of rivers and streams, Lake Superior’s waters flow slowly through the other Great Lakes and out to the Atlantic Ocean. ...
Even at the narrowest it is about 2000 miles wide. Two things make the Atlantic Ocean rather unusual. For so large an ocean it has very few islands. Also , it is the world's saltiest ocean. There is so much water in the Atlantic that it is hard to imagine how much there is. But...
[阅读理解] In the western Pacific Ocean lies the deepest place on the planet — the Mariana Trench, which runs as deep as about 7 miles below the ocean’s surface. That’s greater than the height of Mount Everest measuring about 5 and a half miles above sea level.The Mariana Trench is...
the deep ocean trenches. The movement of Earth's plates — the layers of rock that cover the planet's hot, flowing mantle — produces these trenches, which can be almost 11 kilometers (7 miles) deep. The deepest points on Earth are in the Pacific Ocean, but every ocean has depths ...
Great Slave Lake, lake, in southern Northwest Territories, Canada, near the Alberta border. It was named for the Slave Indians and has an area of 11,030 square miles (28,568 square km), which makes it the fifth largest lake in North America. It is some 3