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Wind Currents:Uneven Heating between Equator and Poles Video Lecture | Class 7 Oxford Science: Chapter Notes, Worksheets & Tests
FAQs on Wind Currents:Uneven Heating between Equator and Poles Video Lecture - Class 7 Oxford Science: Chapter Notes, Worksheets & Tests
| 1. What are wind currents? |  |
Ans. Wind currents are the movements of air in the Earth's atmosphere. They are caused by the uneven heating of the Earth's surface by the sun.
| 2. How does uneven heating between the equator and poles affect wind currents? | |
Ans. The uneven heating between the equator and poles creates a temperature difference, which leads to the formation of wind currents. Warm air at the equator rises and moves towards the poles, while cold air at the poles sinks and moves towards the equator. This creates a circulation pattern known as the Hadley cell, which influences global wind patterns.
| 3. What is the impact of wind currents on weather patterns? | |
Ans. Wind currents play a crucial role in shaping weather patterns around the world. They help distribute heat and moisture, leading to the formation of different climatic regions. For example, winds blowing from the ocean towards the land can bring moisture and result in rainfall, while winds blowing from land to the ocean can bring dry conditions.
| 4. How do wind currents affect ocean currents? | |
Ans. Wind currents have a significant impact on the formation and direction of ocean currents. The friction between the wind and the ocean's surface causes the water to move in the same direction as the wind. This creates surface ocean currents that can influence marine ecosystems, transportation routes, and climate patterns.
| 5. How are wind currents important for transportation and sailing? | |
Ans. Wind currents have been used for centuries as a source of propulsion for sailing ships. By harnessing the power of wind, ships can travel across the oceans. Wind currents also play a role in aviation, as pilots take advantage of favorable winds to reduce flight time and fuel consumption. Additionally, wind energy is harnessed through wind turbines to generate electricity, contributing to sustainable energy sources.
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