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Mindmap: Wind, Storms and Cyclones | Science Class 7

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FAQs on Mindmap: Wind, Storms and Cyclones - Science Class 7

1. What is wind?
Ans. Wind is the movement of air from an area of high pressure to an area of low pressure. It is caused by the uneven heating of the Earth's surface by the sun.
2. How are storms formed?
Ans. Storms are formed when warm air rises and meets colder air, causing the warm air to cool and condense. This condensation forms clouds, and when the conditions are right, it can lead to the formation of thunderstorms, hurricanes, or tornadoes.
3. What is the difference between a hurricane and a cyclone?
Ans. The main difference between a hurricane and a cyclone is their location. Hurricanes are tropical storms that form over the Atlantic Ocean or the eastern Pacific Ocean, while cyclones are tropical storms that form over the Indian Ocean or the western Pacific Ocean. They have similar characteristics but are named differently based on their location.
4. How are cyclones classified?
Ans. Cyclones are classified based on their wind speed using different scales. The Saffir-Simpson Hurricane Wind Scale is commonly used for hurricanes, categorizing them from Category 1 (74-95 mph) to Category 5 (157 mph or higher). The Tropical Cyclone Intensity Scale is used for cyclones, categorizing them from Category 1 (63-87 km/h) to Category 5 (166 km/h or higher).
5. What are some safety measures to take during a storm or cyclone?
Ans. During a storm or cyclone, it is important to stay indoors and away from windows. Secure any loose objects outside that could become projectiles in high winds. Follow evacuation orders if issued, and have an emergency kit ready with essential supplies such as food, water, batteries, and a first aid kit. Listen to weather updates and follow the instructions of local authorities for your safety.
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