Question

10 facts about seas ​

Answer 1

The ocean covers more than 70 percent of the earth’s surface.

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About 94 percent of the earth’s wildlife is found in the ocean.

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More than 70 percent of the earth’s oxygen is produced by the ocean.

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Five percent of the land belonging to the United States is surrounded by the ocean.

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The sun is what makes the ocean blue.

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The deepest part of the ocean is called the Mariana Trench, which is around 7 miles deep and is located in the South Pacific Ocean.

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The water pressure at the bottom of the Mariana Trench is eight tons per square inch. This means the pressure there is enough to crush you.

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Coral creates its own “sunscreen” by producing coral fluoresce that protects the algae found in coral.

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The largest mountain range is found underwater and is called the Mid-Oceanic Ridge that is around 40,390 miles long.

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The loudest sound ever recorded was made by an iceberg. In 1997, the sound was recorded and named, “The Bloop.” It was said to be heard from more than 3,000 miles away.

Step-by-step explanation:

Answer 2

1.Oceans encircle 70% of the planet's surface.

2.The oceans contain more than 90% of the planet's living biomass.

3.Land-based activities account for 80% of all pollution in seas and oceans.

4.Nearly 40% of the world's population lives 60 kilometres or less from the coast.

5.Near the ocean are three-quarters of the world's megacities.

6.Eighty percent of people will reside within 100 kilometres of the coast by 2010.

7.The global economy loses US$12.8 billion a year as a result of illness and death brought on by contaminated coastal waters.

8.Hepatitis has an annual economic cost of $7.2 billion only from contaminated seafood.

9.Each year, plastic waste kills countless fish, 100,000 marine mammals, and up to one million sea birds.

Step-by-step explanation: