GEOLOGY

EARTH SCIENCE

OCEANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do the oceans affect the global climate?
A
the ocean keeps the planet’s temperature colder than it would be otherwise
B
the ocean keeps the planet’s overall temperature moderate, not too hot and not too cold
C
the ocean keeps the atmosphere’s winds faster than they would be otherwise
D
the ocean keeps the atmosphere’s winds slower than they would be otherwise
Explanation: 

Detailed explanation-1: -Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth’s surface.

Detailed explanation-2: -The oceans also regulate the global climate; they mediate temperature and drive the weather, determining rainfall, droughts, and floods. They are also the world’s largest store of carbon, where an estimated 83% of the global carbon cycle is circulated through marine waters.

Detailed explanation-3: -The effects of ocean currents on climate are, The warm and cold ocean currents affect the climate of the adjoining land. They have an impact on the climate of the surrounding land. Warm currents raise the temperature of the areas adjacent to them, while colder currents lower the temperature of the adjacent area.

Detailed explanation-4: -The ocean generates 50 percent of the oxygen we need, absorbs 25 percent of all carbon dioxide emissions and captures 90 percent of the excess heat generated by these emissions. It is not just ‘the lungs of the planet’ but also its largest ‘carbon sink’ – a vital buffer against the impacts of climate change.

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