Science and Technology Class 9 Important Questions Chapter 9 Maharashtra Board

Environmental Management

Short Questions

1. What is weather?

• Weather is the atmospheric condition at a specific time and place.

2. What is climate?

• Climate is the average weather condition of a region over many years.

3. Name one factor that affects weather.

• Temperature is one factor that affects weather.

4. What does the India Meteorological Department do?

• It provides weather forecasts and studies climatic conditions.

5. What is meteorology?

• Meteorology is the science of studying weather and climate.

6. When was the World Meteorological Organization established?

• It was established on March 23, 1950.

7. What is solid waste?

• Solid waste is the unwanted material generated from daily human activities.

8. What is biodegradable waste?

• Biodegradable waste is organic waste that microbes can break down easily.

9. Give an example of non-biodegradable waste.

• Plastic is an example of non-biodegradable waste.

10. What is one harmful effect of solid waste?

• Solid waste causes air pollution and spreads diseases.

11. What is the first principle of first aid (ABC)?

• The first principle is to ensure an open airway for breathing.

12. What is CPR in first aid?

• CPR is cardio-pulmonary resuscitation to restore heart circulation.

13. How should you treat a bleeding wound?

• Cover the wound with an antiseptic pad and apply pressure for 5 minutes.

14. What is the RICE remedy used for?

• RICE is used for injuries like sprains, twists, and contusions.

15. What method is used to carry an unconscious patient?

• The pulling or lifting method is used for an unconscious patient.

16. What is a natural disaster mentioned in the chapter?

• Floods are a natural disaster mentioned in the chapter.

17. What is one eco-friendly waste management method?

• Composting is an eco-friendly waste management method.

18. What does the 3R mantra stand for?

• The 3R mantra stands for Reduce, Reuse, and Recycle.

19. How long does plastic take to degrade?

• Plastic takes hundreds of years to degrade.

20. What is the purpose of disaster management?

• Disaster management aims to prevent losses and provide relief during calamities.

Long Questions

1. How does weather differ from climate?

• Weather is the short-term condition of the atmosphere at a specific place, like rain or heat today. Climate is the average weather pattern of a region over many years, staying constant for a long time.

2. Why is the study of meteorology important for farmers?

• Meteorology helps farmers by providing weather forecasts, so they can plan planting and harvesting. It also warns them about storms or heavy rain, helping protect their crops.

3. What are the harmful effects of solid waste on the environment?

• Solid waste causes air and water pollution, spreading diseases and producing toxic gases. It also degrades natural beauty and harms soil, affecting plants and animals.

4. How can biodegradable waste be managed effectively?

• Biodegradable waste like vegetable peels can be managed by composting, turning it into fertilizer. Vermicomposting with earthworms is another eco-friendly way to recycle this waste.

5. What are the steps involved in providing first aid to a burn victim?

• For a burn victim, hold the injured part under cold, clean water for 10 minutes to reduce pain. This helps prevent further damage and starts the healing process.

6. How does the India Meteorological Department help during disasters?

• The India Meteorological Department predicts disasters like floods or tsunamis using satellites. It shares these warnings with people and authorities to reduce damage and save lives.

7. What is the importance of climate in our daily life?

• Climate affects our food, clothing, and shelter, like warm clothes in Kashmir or light clothes in Rajasthan. It also influences occupations, especially farming in a country like India.

8. Why is it necessary to recycle non-biodegradable waste?

• Recycling non-biodegradable waste like plastic reduces landfill waste and pollution. It also saves natural resources by making new products from old materials.

9. How can the 7 principles of solid waste management help the environment?

• Principles like Reduce, Reuse, and Recycle cut down waste and encourage eco-friendly habits. This helps keep the environment clean, reduces pollution, and saves resources.

10. What precautions should be taken while transporting a patient with a fracture?

• For a patient with a fracture, immobilize the broken part with a wooden rod or ruler to avoid further injury. Keep them steady on a firm stretcher, especially if the back is affected, to ensure safety.