A. 90% Hydrogen, 10% Nitrogen B. 80% Nitrogen, 20% Hydrogen C. 60% Nitrogen, 40% inert gases D. None of these…
A. 0.03 to 0.04% CO2 B. 0.3 to 0.4% CO2 C. 3 to 4% CO2 D. None of these Explanation:…
A. 11% Oxygen approximately B. 21% Oxygen approximately C. 31% Oxygen approximately D. None of these Explanation: Earth's atmosphere is…
A. gravity B. winds C. clouds D. rotation of the Earth Explanation: The atmosphere is held around the Earth by gravity. Gravity pulls gas molecules…