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Fundamentals of Physical Geography: Water(Oceans)- 2 Video Lecture | NCERT Video Summary: Class 6 to Class 12 (English) - UPSC

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FAQs on Fundamentals of Physical Geography: Water(Oceans)- 2 Video Lecture - NCERT Video Summary: Class 6 to Class 12 (English) - UPSC

1. What are the major oceans on Earth?
Ans. The major oceans on Earth are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean, and the Arctic Ocean.
2. What is the significance of oceans in physical geography?
Ans. Oceans play a crucial role in physical geography as they influence weather patterns, regulate global climate, and support a vast variety of marine ecosystems. They also act as a major transportation route, provide resources like fish and minerals, and contribute to the water cycle.
3. How deep are the oceans?
Ans. The average depth of the oceans is about 3,800 meters (12,467 feet). The Pacific Ocean is the deepest with an average depth of 4,000 meters (13,123 feet), while the Arctic Ocean is the shallowest with an average depth of 1,038 meters (3,406 feet).
4. What causes ocean currents?
Ans. Ocean currents are primarily caused by a combination of wind patterns, temperature differences, and the rotation of the Earth. Surface currents are mainly driven by winds, while deep currents result from differences in water density caused by variations in temperature and salinity.
5. How do oceans affect climate?
Ans. Oceans have a significant impact on climate as they absorb, store, and release heat over long periods of time. They act as heat reservoirs, redistributing warmth from the equator to higher latitudes, influencing the intensity and direction of winds, and affecting the formation of weather systems such as hurricanes.
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