Explain the importance of oceans.
Answers
Explanation:
The air we breathe: The ocean produces over half of the world's oxygen and absorbs 50 times more carbon dioxide than our atmosphere. Climate regulation: Covering 70 percent of the Earth's surface, the ocean transports heat from the equator to the poles, regulating our climate and weather patterns.
Answer:
Oceans are great bodies of saltwater comprising nearly three-fourths of the surface of the earth. The world ocean covers 71% of the earth’s surface, or about 361 million sq. km. The three major subdivisions of the world ocean are the Atlantic Ocean, the Pacific Ocean, and the Indian Ocean which is bounded with the ocean ridges or currents. Oceans are a great source of food. About 90% of marine life lives in the oceans.
Explanation:
There is abundant aquatic life in the oceans. From the microscopic planktons to huge whales, different types of living things are found in the oceans. Once they die, their remains accumulate in oceans.
All rivers flowing from mountains or hilly areas finally meet the ocean. Sediments from eroded lands, trees and bushes flowing with the water, dead remains, etc. enter the ocean with this river water.
In both the above processes, the dead remains decompose, releasing various minerals and salts in the ocean water.
Volcanic eruptions occur on land. Similar volcanic eruptions take place in the ocean as well. During volcanic eruptions, different minerals, ashes, salts and gases are added to the water. This increase the level of salts and minerals in ocean water.
Due to the continuous evaporation of oceanic waters, the proportion of salts increases. All these things make the ocean water salty
The salinity of ocean water is different at a different place. The average salinity of oceanic water is 35%. The Dead Sea is known to have the maximum salinity. It is salinity higher.
We obtain salt from the salty waters. Salts as a substance is obtained by constructing salt pans in the coastal areas.
Many minerals like phosphate, sulfates, iodine, etc. are also obtained from the sea.
We depend on the oceans to some extent for minerals.
Ocean play important role in humankind. Natural resources are obtaining form ocean depth. Today scientists have found many medicinal plants to treat dangerous disease form the ocean.
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