Imp Questions For All Chapters – General Science Class 7
Disaster Management
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 (like floods, earthquakes) and man-made disasters (like fires, accidents).
3. Give two examples of natural disasters.
→ Earthquake and Tsunami.
4. Give two examples of man-made disasters.
→ Fires and railway accidents.
5. What is famine?
→ A famine is a long-term shortage of food and water affecting people and animals.
6. What is the main cause of famine?
→ Drought, floods, pest attacks, and wars.
7. What is a cloudburst?
→ A cloudburst is sudden, heavy rainfall in a small area, leading to flooding.
8. Give an example of a major cloudburst in India.
→ Mumbai Cloudburst (2005) – 950 mm of rain in 8-10 hours.
9. What is lightning?
→ Lightning is a huge electric discharge between clouds and the ground.
10. What precautions should be taken during a thunderstorm?
→ Avoid open fields, trees, and metal objects. Stay indoors.
11. What is a volcano?
→ A volcano is an opening in the Earth’s crust that releases lava, gas, and ash.
12. What is a tsunami?
→ A tsunami is a huge ocean wave caused by an underwater earthquake or volcanic eruption.
13. What are the effects of a tsunami?
→ Flooding, destruction of buildings, and loss of life.
14. What is a storm?
→ A storm is strong winds with heavy rain that can cause damage.
15. Which organization helps in disaster management worldwide?
→ The United Nations Development Programme (UNDP).
Long Questions
1. How does famine affect people and the environment?
→ Famine leads to severe food and water shortage, causing hunger, malnutrition, and death. It also affects agriculture, economy, and migration of people.
2. What are the causes of a cloudburst?
→ A cloudburst occurs when warm air rises rapidly, cools, and condenses, causing sudden heavy rainfall in a small area, which may lead to floods.
3. Why is it dangerous to stand under a tree during a thunderstorm?
→ Trees are tall conductors of electricity and can attract lightning, which can cause fires, electric shocks, or falling branches that may harm people.
4. What are the effects of a volcanic eruption?
→ Volcanic eruptions release lava, ash, and gases, which can destroy land, forests, homes, and affect air quality, making breathing difficult.
5. How do tsunamis form?
→ Tsunamis are caused by underwater earthquakes, volcanic eruptions, or landslides, which push a huge amount of ocean water, forming massive waves.
6. What safety measures should be taken during a storm?
→ Stay indoors, avoid trees and power lines, close windows, and listen to weather warnings for evacuation if needed.
7. What are the effects of floods?
→ Floods damage homes, roads, and crops, cause waterborne diseases, and lead to economic loss and displacement of people.
8. How does the government help in disaster management?
→ The government builds dams, embankments, and early warning systems, provides relief materials, and sets up rescue operations and shelters.
Leave a Reply