Indian ocean

WORLD OCEAN

Presented by-JISMY JAMES

INTRODUCTION WORLD OCEAN WAVES IN THE OCEAN TSUNAMIES INDIAN OCEAN CREATURES THAT SURVIVE IN

SALTWATER OCEANOGRAPHY

About the world ocean

The oceans that make up three-quarters of the Earth's surface are realms of boundless energy.

Oceans have been a source of food, the birthplace of weather systems that effect the continents, pathways for commerce, and fields of battle.

WAVES IN THE OCEAN

The winds cause waves on the surface of the ocean (and on lakes).

The wind transfers some of its energy to the water, through friction between the air molecules and the water molecules.

Stronger winds (like storm surges) cause larger waves.

You can make your own miniature waves by blowing across the surface of a pan of water.

Waves of water do not move horizontally, they only move up and down (a wave does not represent a flow of water).

You can see a demonstration of this by watching a floating buoy bob up and down with a wave; it does not, however, move horizontally with the wave.

TSUNAMIES

A tsunami (pronounced sue-nahm-ee) is a series of huge waves that can cause great devastation and loss of life when they strike a coast.

Tsunamis are caused by an underwater earthquake, a volcanic eruption, an sub-marine rockslide, or, more rarely, by an asteroid or meteoroid crashing into in the water from space.

Mosta tsunamis are caused by underwater earthquakes, but not all underwater earthquakes cause tsunamis - an earthquake has to be over about magnitude 6.75 on the Richter scale for it to cause a tsunami.

About 90 percent of all tsunamis occur in the Pacific Ocean.

INDIAN OCEAN IS THE THIRD LARGEST OCEAN

It is more than 28 million square miles in size and covers almost one fifth of the world’ssurface

It lies to the east of Africa and the west of Australia , with Asiato the north.

The National Oceanic and Atmospheric Administration (NOAA)

NATIONAL OCEAN SERVICE

Fact check for Andrew Gliks on –Ocean heat has paused too | Watts

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The ocean is home to creatures that survive in saltwater

And there are a lot kind of water plants also

From the large BALEEN WHALE to the small GREEN TARTLE , the Indian ocean has a plethora of

sea life.

Which is the FASTEST Animal in the ocean ?

The SAILFISH (BAYONET FISH) is the FASTEST animal in the ocean.

The sailfish has been clocked at over 68 miles per hour over short bursts of speed , because of its long bill .

It is common in warm waters in medium depths but can dive deeply in pursuit of prey.

Bottle nose DOLPHIN The bottle nose DOLPHIN in

habits the warm tropical oceans , in particular the north region of Indian ocean

It can grow up to 14 feet &

weigh as much 1100 lbs.

Studies about OCEAN It is called

Oceanography is the study of the deep sea and shallow coastal oceans: biology, chemistry, geology and physics together make oceanography a richly interdisciplinary science

Why is Oceanography important? Perhaps the most

important observation is that oceanography gives you a world view, ...an understanding of the global system that is our environment, which can inspire your work, wherever it leads.

CONCLUSION Humans first acquired knowledge of the

waves and currents of the seas and oceans in pre-historic times.

Observations on tides were recorded by Aristotle and Strabo.

Early modern exploration of the oceans was primarily for cartography and mainly limited to its surfaces and of the creatures that fishermen brought up in nets, though depth soundings by lead line were taken.

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