5 Questions
What are the basic components of air and their respective percentages?
Nitrogen (78-79%), Oxygen (21%), Carbon dioxide (0.03%), Water vapour (Variable)
What are the functions of air?
Controlling combustion, essential for growth of plants and animals, respiration of living beings, photosynthesis in plants, warming of the earth’s environment, controlling evaporation, determining climatic conditions
What is the approximate height of the ocean of air surrounding the earth?
Approximately 300 kilometers above the earth’s surface
What are the uses of Helium and Neon mentioned in the text?
Helium is used in decorative balloons and weather observation balloons. Neon is used in tubes design
In what state does air also occur, apart from its gaseous form?
Air also occurs in dissolved state in water
Test your knowledge of the basic composition of air, oxygen, and oxides with this Class VII Chemistry Lesson 6 quiz. Explore the components of air and their properties, and deepen your understanding of this essential element.
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