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Explanation: Fog Video Lecture | English Class 10

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FAQs on Explanation: Fog Video Lecture - English Class 10

1. What is fog?
Fog is a weather phenomenon that occurs when tiny water droplets or ice crystals suspend in the air close to the ground. It reduces visibility and creates a hazy or misty appearance.
2. How does fog form?
Fog forms when air near the ground cools down and reaches its dew point, which is the temperature at which it becomes saturated with water vapor. As the air cools, moisture condenses into tiny droplets or ice crystals, forming fog.
3. What are the different types of fog?
There are several types of fog, including radiation fog, advection fog, upslope fog, and evaporation fog. Radiation fog forms during calm, clear nights when the ground loses heat rapidly. Advection fog occurs when warm, moist air moves over a cooler surface. Upslope fog forms as warm, moist air rises up a slope and cools. Evaporation fog results from cold air moving over warmer water.
4. How does fog affect transportation?
Fog significantly impacts transportation, especially air and road travel. It reduces visibility, making it difficult for pilots to navigate and land aircraft safely. On roads, fog decreases visibility, leading to increased accidents and traffic congestion. It is essential to drive cautiously and use appropriate fog lights or low beam headlights when encountering foggy conditions.
5. Can fog have any environmental impacts?
Yes, fog can have environmental impacts. It plays a crucial role in ecosystems by providing moisture to plants and contributing to their growth. Fog also helps replenish freshwater sources and supports certain ecosystems, such as coastal areas and cloud forests. However, excessive fog can disrupt certain activities like agriculture, as it may lead to crop diseases and hinder photosynthesis in plants.
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