Title Class 09 Science Chapter 14 Natural Resources.pdf ✅

Natural Resources DPP-01 [Topic: The Breathe of Life: Air] Very Short Answer Type Questions 1. Name the main component of the suspended particles in air? 2. Give the full form of CFCs. 3. Write the formula of ozone. 4. Which acids are present in acid rain? 5. Explain the role of atmosphere in climate control. 6. What is the importance of presence of green house gases in the atmosphere? 7. Write the two biotic components of the biosphere. 8. What are the available resources on the earth for life to exist? 9. Give the names of two air pollutants. 10. Which is heated faster: land or sea water? 11. Which gets cool faster: land or water? 12. What causes wind? 13. What acts as a nucleus for the condensation of water? 14. Do dust particles increase/decrease temperature of the earth? 15. Name any two gases which are produced by the combustion of fossil fuels? 16. If there were no atmosphere around earth. What will happen to the temperature of day and night? 17. Name the atmospheric gas that leads to global warming. 18. When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen? 19. In a city like Delhi, during cold weather why is visibility so low especially in morning? 20. Why do people love to fly kites near the sea shore? 21. Why does Mathura refinery pose problems to the Taj Mahal? 22. Why do not lichens occur in Delhi where as they commonly grow in Manali or Darjeeling? 23. Carbon di oxide is necessary for plants. Why do we consider it as a pollutant? 24. The temperature on moon ranges from −190∘ C to 110∘ C while on earth, it is around 20∘ C − 30∘ C. Why?
Short Answer Type Questions-I 25. List three activities which lead to environmental pollution or air pollution. 26. How does the atmosphere act as a blanket on the earth? 27. How are clouds formed? 28. Why is atmosphere essential for our life? 29. What are natural resources present on the earth? 30. A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why? 31. Explain how CO2 being produced? Explain how inspite of so much of its production, it makes only 0.03% of total gases? Short Answer Type Questions-II 32. How is the atmosphere of Venus/Mars different from that of Earth? Name two main gases present in the Earth's atmosphere. 33. How is the quality of air affected due to the combustion of fossil fuels and how does this change in quality affect us and other life forms?
Natural Resources DPP-02 [Topic: Water – A Wonder Liquid] Very Short Answer Type Questions 1. What is the most unique feature of water? 2. Which component of air has highest solubility in water? 3. Why are aquatic species more comfortable in cold water than hot water? 4. Name a pollution free source of energy. 5. Why is water rarely available in pure form? 6. Mention two processes which replenish water back in the environment. 7. In how many forms is water available? 8. Why does water need conservation even though large oceans surround the land masses? 9. There is mass mortality of fishes in a pond. What may be the reasons? Short Answer Type Questions-I 10. Why do organisms need water? 11. What is the major source of fresh water in the city/town/village where you live? 12. Do you do any activity which may be polluting this water source? 13. Give renewable sources of energy. 14. Name two ways of preventing water pollution. 15. How are rainfall patterns decided? 16. Rivers from land, add minerals to sea water. Discuss how? 17. How is the life of organisms living in water affected when water gets polluted? 18. 'Water everywhere, But no water to drink', what do you understand by this statement? 19. How clouds are formed and bring us rain? 20. Elaborate what effects on the water body would amount to its pollution? Short Answer Type Questions-II 21. In coastal area, wind current moves from the sea towards the land during day; but during night it moves from land to the sea. Discuss the reason. 22. Is there any relationship between the amount of available water and the number and variety of plants and animals that can live in a given area? Are there some other factor which may play an important role too?