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Exercises Question and Answers - Cyclones, Disaster Management, Class 8 PDF Download

Exercises


Q.1. What causes a cyclonic storm?
Ans.
A cyclonic storm is caused by a low pressure zone surrounded by cyclonic winds. Cyclones are caused due to a combination of warm sea temperature, high relative humidity and atmospheric instability.
 

Q.2. What are the hazards associated with cyclones?
Ans.
Hazards associated with cyclones include torrential rains, floods and high tidal waves.
 

Q.3. What is the eye of a cyclone and what are its characteristics?
Ans.
The eye of the cyclone is nothing but the centre of the cyclonic winds. The eye is characterised by a calm zone with a good weather.
 

Q.4. List the steps in preparing for a cyclone.
Ans.
During seasons when cyclones are possible, people in coastal areas should always be alert. They should update themselves about approaching waves through TV and radio. Fishermen should avoid going to the sea after warning has been issued. Safe shelters should be identified so that people are ready to evacuate any time. An easily accessible emergency kit is advisable. Adequate food grains should be stored in safe places so that they come of use in times of cyclones.
 

Q.5. Besides natural causes, what are the man made reasons, which have contributed to increase in the impact of cyclones?
Ans.
Besides natural impact of cyclones, human activities like deforestation and encroachments in coastal areas contribute in increasing its ill-effects, since forests present on coasts help in shielding the communities living in residential areas from the impact of cyclonic winds.
 

Q.6. Which are the cyclone prone areas of our country?
Ans.
Coastal areas of India are cycloneprone. The eastern coastline is more prone than the western coastline.

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FAQs on Exercises Question and Answers - Cyclones, Disaster Management, Class 8

1. What is a cyclone?
Ans. A cyclone is a large-scale weather system characterized by low pressure at its center and strong winds circulating around it. Cyclones are usually accompanied by heavy rainfall and can cause widespread destruction and flooding.
2. How are cyclones formed?
Ans. Cyclones are formed over warm ocean waters when the atmospheric conditions are favorable. Warm moist air rises from the ocean surface, creating an area of low pressure. As the air rises, it cools, condenses, and forms clouds. The rotation of the Earth causes the air to spin, leading to the formation of a cyclone.
3. What is disaster management?
Ans. Disaster management refers to the process of preparing for, responding to, and recovering from disasters or emergencies. It involves various measures and strategies to minimize the impact of disasters on human lives, property, and the environment. Disaster management includes activities such as risk assessment, early warning systems, evacuation plans, and post-disaster relief efforts.
4. How can we prepare for a cyclone?
Ans. There are several steps to prepare for a cyclone: - Stay informed about weather updates and warnings issued by meteorological departments. - Create an emergency kit with essential supplies such as food, water, medications, and first aid items. - Secure your home by reinforcing doors and windows, trimming trees, and securing loose objects. - Identify safe areas in your home or nearby where you can take shelter during the cyclone. - Develop a family communication plan to stay connected during emergencies.
5. What are the impacts of cyclones?
Ans. Cyclones can have devastating impacts, including: - Strong winds can cause extensive damage to buildings, infrastructure, and vegetation. - Heavy rainfall can lead to flooding, landslides, and damage to crops. - Storm surges, caused by the cyclone's strong winds pushing the sea inland, can result in coastal inundation and erosion. - Cyclones can disrupt transportation, communication, and electricity supply. - They can also lead to loss of lives and injuries.
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