Imp Questions For All Chapters – General Science Class 8
Short Questions
1. What is a disaster?
- A disaster is a sudden event that causes damage to life, property, and the environment.
2. What are the two types of disasters?
- Natural disasters (earthquakes, floods) and man-made disasters (fires, chemical leaks).
3. Give two examples of natural disasters.
- Earthquakes and cyclones.
4. Give two examples of man-made disasters.
- Factory fires and gas leaks.
5. What is an earthquake?
- An earthquake is the shaking of the Earth’s surface due to movements inside the Earth.
6. What is a landslide?
- A landslide is the sudden sliding of rocks and soil down a hill or mountain.
7. Why do landslides occur during heavy rains?
- Rainwater weakens the soil, making it loose and causing it to slide down.
8. What is the safest place during an earthquake?
- Under a strong table or in an open area away from buildings.
9. Why should we avoid using lifts during an earthquake?
- Lifts may stop working if the power goes out, trapping people inside.
10. What should we do after an earthquake?
- Check for injuries, switch off gas connections, and listen to emergency instructions.
11. What is an earthquake-proof building?
- A building designed with shock-absorbing foundations to withstand earthquakes.
12. Which organization helps in disaster management in India?
- NDRF (National Disaster Response Force).
13. How can we reduce landslides?
- By planting trees and avoiding cutting down forests on hills.
14. What is the role of CCTV in disaster management?
- CCTV helps in monitoring disasters and guiding rescue teams.
15. Why is disaster management important?
- It helps save lives, reduce damage, and prepare people for emergencies.
Long Questions
1. What are the major types of disasters?
- Disasters are mainly of two types: natural disasters and man-made disasters. Natural disasters include earthquakes, floods, cyclones, and landslides, while man-made disasters include fires, gas leaks, and industrial accidents, all of which cause damage to life and property.
2. How do earthquakes affect human life?
- Earthquakes can cause buildings, roads, and bridges to collapse, leading to many deaths and injuries. They can also trigger fires, landslides, and tsunamis, making rescue operations difficult and causing long-term destruction in affected areas.
3. Why is it important to have earthquake-proof buildings?
- Earthquake-proof buildings are designed with shock-absorbing foundations and flexible structures to reduce shaking. These buildings prevent major damage, reduce the risk of collapse, and save lives during an earthquake.
4. How does deforestation increase the chances of landslides?
- Trees and plant roots hold the soil together and prevent it from becoming loose. When forests are cut down, the soil loses its grip and slides down during heavy rains or earthquakes, increasing the chances of landslides.
5. How can we stay safe during an earthquake?
- During an earthquake, we should take cover under a strong table or move to an open space away from buildings and trees. It is also important to stay calm, avoid using lifts, and protect our heads from falling objects.
6. What are the effects of landslides on the environment?
- Landslides cause loss of trees, destruction of houses, and blockage of roads and rivers. They also lead to floods, soil erosion, and loss of agricultural land, making it difficult for people to rebuild their lives.
7. What role do government agencies play in disaster management?
- Government agencies like NDRF (National Disaster Response Force) and IMD (Indian Meteorological Department) help in rescue, relief, and early warning systems. These agencies save lives, provide medical help, and rebuild affected areas after disasters.
8. Why should we not spread false information during a disaster?
- False information during disasters creates panic and confusion, making people act in fear. It also delays rescue operations and can lead to accidents, so it is important to only share verified news and follow official instructions.
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