11th Geography NCERT Chapter 13
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– Important Topics from the Chapter:
1. Characteristics of Ocean Currents:
– Currents are strongest near the surface and decrease in strength with depth, usually having speeds less than 5 knots.
2. Major Ocean Currents:
– Influenced by prevailing winds and coriolis force, corresponding roughly to the earth's atmospheric circulation pattern.
3. Effects of Ocean Currents on Climate:
– Influence human activities, create different climates along coastlines, affect fishing grounds.
4. Types of Ocean Currents based on Temperature:
– Cold currents bring cold water into warm areas, while warm currents bring warm water into cold areas.
5. Ocean Circulation Patterns and Influencing Forces:
– Patterns influenced by prevailing winds, coriolis force, gravity, and heating by solar energy.
These topics provide a comprehensive overview of ocean currents, their effects, and the factors influencing their movement【4:0†source】.
What is the primary force that causes ocean water to expand near the equator?
Explain how the Coriolis force influences the movement of ocean currents in the Northern and Southern Hemispheres.
What are the characteristics of waves in terms of wave crest and trough?
How are waves generated in the ocean, and what factors influence their size and shape?
Explain the relationship between wave motion and water molecules beneath the waves.
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