A) The people use large fans to force more oxygen into the atmosphere at that altitude. B) They learn to breath carbon dioxide. C) They become accustom to the lower oxygen content. D) They move to lower elevations.
A) head winds B) westerlies C) easterlies D) trade winds
A) carbon dioxide B) ozone C) chlorofluorocarbons D) carbon free compounds
A) troposphere B) stratosphere C) ionosphere D) Exosphere
A) evaporation B) radiation C) convection D) conduction
A) carbon dioxide B) ozone C) argon D) oxygen
A) melting B) evaporation C) condensation D) convection
A) stratosphere B) Exosphere C) troposphere D) ionosphere
A) Exosphere B) troposphere C) ionosphere D) stratosphere
A) stratosphere B) ionosphere C) Exosphere D) troposphere |