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Pressure Belts Video Lecture | Geography for UPSC CSE
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FAQs on Pressure Belts Video Lecture - Geography for UPSC CSE
| 1. What are pressure belts and why are they important in meteorology? |  |
Ans. Pressure belts are regions of high and low atmospheric pressure that occur in predictable patterns around the Earth. They are important in meteorology because they influence wind patterns, weather systems, and climate. Understanding these belts helps meteorologists predict weather changes and climate conditions.
| 2. How many major pressure belts exist on Earth? | |
Ans. There are five major pressure belts on Earth: the Equatorial Low (or Intertropical Convergence Zone), the Subtropical Highs, the Subpolar Lows, and the Polar Highs. Each of these belts has distinct characteristics that affect global weather patterns.
| 3. What causes the formation of pressure belts? | |
Ans. Pressure belts are formed due to the uneven heating of the Earth's surface by the sun. This uneven heating causes variations in air temperature and density, leading to the rise of warm air in some regions (creating low pressure) and the sinking of cooler air in others (creating high pressure).
| 4. How do pressure belts affect global wind patterns? | |
Ans. Pressure belts play a crucial role in determining global wind patterns. The differences in pressure between high and low-pressure areas create wind. For example, winds generally flow from the high-pressure areas of the subtropical highs towards the low-pressure areas of the equatorial low, contributing to the trade winds and prevailing westerlies.
| 5. What impact do pressure belts have on climate and weather? | |
Ans. Pressure belts significantly impact climate and weather by dictating precipitation patterns and temperature variations. For instance, areas near the Equatorial Low typically experience heavy rainfall, while regions under the Subtropical Highs often have arid conditions. Understanding these impacts helps in predicting local weather and longer-term climate trends.
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