CLASS 7 CHAPTER 4 Air MCQs

CLASS 7 CHAPTER 4 Air MCQs mcqs = [ (“What is the blanket of air surrounding the Earth called?”, {“A”: “Lithosphere”, “B”: “Atmosphere”, “C”: “Hydrosphere”, “D”: “Biosphere”}, “B”), (“Which gas makes up the largest portion of the Earth’s atmosphere?”, {“A”: “Oxygen”, “B”: “Carbon dioxide”, “C”: “Nitrogen”, “D”: “Hydrogen”}, “C”), (“What effect does carbon dioxide have … Read more