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Ocean's Vital Role & Human Impact

The document discusses key facts about oceans, including that oceans cover 71% of the Earth's surface, have an average salinity of 35 parts per thousand, and are divided into principal oceans and seas. It notes that over 50% of the global population lives within 50 miles of a coast and that in the USA over 180 million people visit coastal areas for recreation each year. The document emphasizes that the ocean is essential to human survival as a source of food, medicine, jobs, and its influence on weather and climate through processes like absorbing carbon dioxide. Protecting the ocean protects human health, economies, and future generations.

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Ahmed El-Lithi
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147 views2 pages

Ocean's Vital Role & Human Impact

The document discusses key facts about oceans, including that oceans cover 71% of the Earth's surface, have an average salinity of 35 parts per thousand, and are divided into principal oceans and seas. It notes that over 50% of the global population lives within 50 miles of a coast and that in the USA over 180 million people visit coastal areas for recreation each year. The document emphasizes that the ocean is essential to human survival as a source of food, medicine, jobs, and its influence on weather and climate through processes like absorbing carbon dioxide. Protecting the ocean protects human health, economies, and future generations.

Uploaded by

Ahmed El-Lithi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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In my research I'm going to take about the salt water, Specially the OCEAN: 

An ocean (from, Okeanos (Oceanus) in Greek) is a major body of saline water, and a
principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area
of some 361 million square kilometers) is covered by ocean, a continuous body of water that
is customarily divided into several principal oceans and smaller seas. More than half of this
area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per
thousand (ppt-(abbrev): parts per trillion) (3.5%), and nearly all seawater has a salinity in the
range of 31 to 38 ppt.

We are connected to the coast and ocean. Whether or not we are among the over 50% of the
population who live within 50 miles of the coast, we are all dependent on our coasts and
ocean for our food, health, recreation and jobs. In the USA, more than 180 million people
visit the shore for recreation every year and tens of thousands of jobs in fishing, recreation,
and tourism depend on healthy, functioning coastal ecosystems.

Planet Earth has one big beautiful ocean. This one ocean and humans are inextricably linked.
The ocean covers 71% of our planet and its powerful waves and water energy shape the
features of the land. The ocean provides us with many forms of recreation: fishing, diving,
walking, surfing, paddling, beach bonfires, sailing, swimming and beachcombing. And, for
millennia, our ocean has served as the natural superhighway for trade, transportation and
communication.

The health of the ocean is essential to human survival. The ocean is a major source of food,
medicine, and jobs. Fish from the ocean currently are the primary source of protein for one in
six people on earth. And, nearly a million people in the US have jobs that directly depend on
the ocean and that add $12 billion to our GDP. However, while the ocean supports the
greatest diversity of life and ecosystems on our planet, it is largely unexplored.

The ocean is a major influence on weather and climate. In fact it is the ocean that makes our
planet habitable. Without the ocean as a heat sink, our days would be unbearably hot, and our
nights would be freezing cold. The ocean naturally recycles our water and our air, constantly
cleaning it for us to use over and again 24 hours a day, seven days a week. In fact, 86% of
the water we drink comes from the ocean; and the ocean produces more oxygen than the
rainforests. It even absorbs 48% of the carbon that we humans put into the atmosphere. The
ocean is the best protection we could hope for. We must be good stewards of this part of our
living world.

1 Information about Sea & Oceans


News of Today
.The Ocean touches everyone and everything. It is essential to life and human survival. We
all have a strong, personal connection to the
ocean (whether we realize it or not). Protecting
the ocean protects our health, our economy, and
our children’s future. Together, we can make a
difference.

Some interests about oceans are:

 Oceans cover 70 percent of the Earth’s


surface

 Eighty percent of all pollution in seas


and oceans comes from land-based
activities.

 Forty percent of the world’s population lives within 60 km of a coast.

 The High Seas -- areas of the ocean cover almost 50 percent of the Earth’s surface.
They are the least protected part of the world

 More than 90 percent of goods traded between countries are transported by sea.

 There are about 4,000 coral reef fish species worldwide, accounting for
approximately a quarter of all marine fish species.

 Sea creatures killed by plastic decompose, the plastic does not. Plastic remains in the
ecosystem to kill again and again.

2 Done by : Ahmed Rushdi , Ala al Din, Ahmed Hassan &


Sultan al Kaf

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