Class 11 Geography NCERT Solutions Chapter 8 Composition and Structure of Atmosphere
Class 11 Geography NCERT Solutions Chapter 8 Composition and Structure of Atmosphere Class 11 Geography Chapter 8 NCERT Textbook Questions Solved 1. Multiple choice questions. Question 1(i). Which one of the following gases constitutes the major portion of the atmosphere? (a) Oxygen (b) Nitrogen (c) Argon (d) Carbon dioxide. Answer: (b) Nitrogen Question 1(ii). Atmospheric layer important for human beings is: (a) Stratosphere (b) Mesosphere (c) Troposphere (d) Ionosphere. Answer: (c) Troposphere Question 1(iii). Sea salt, pollen, ash, smoke soot, fine soil hese are associated with: (a) Gases (b) Dust particles (c) Water vapour (d) Meteors. Answer: (b) Dust particles Question 1(iv). Oxygen gas is in negligible quantity at the height of atmosphere: (a) 90 km (b) 120 km (c) 100 km (d) 150 km. Answer: (b) 120 km Question 1(v). Which one of the following gases is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation? (a) Oxygen (b) Nitrogen (c) Helium (d) Carb...