A) ground level smoke and fog B) anything that has to do with breathing, taking in oxygen and releasing carbon dioxide C) a colorless gas D) the whole mass of air surrounding the Earth
A) an element that pollutes B) impurities in the air, water and land that create an unclean environment C) visible emissions from a smoke stack or chimney D) something that is poisonous or deadly
A) the second layer of the Earth's atmosphere from the Earth's surface B) the whole mass of air surrounding the Earth C) the layer of the Earth's atmosphere that is closest to the Earth D) the combination of all that exists around us which is necessary for us to survive
A) ground level fog and smoke B) visible emissions from a smokestack or chimney C) a colorless gas that is formed when pollutants react with sunlight and that is a major part of smog D) the layer of the Earth's atmosphere that is closest to the earth
A) a colorless gas that is formed when pollutants react with sunlight B) something that is poisonous or deadly C) the visible emissions from a smokestack or chimney D) impurities in the air, water and land that create an unclean environment
A) a colorless gas that is formed when pollutants react with sunlight B) ground level fog and smoke C) an element that pollutes D) something that is poisonous and deadly
A) anything that has to do with breathing and taking in oxygen and releasing carbon dioxide B) the whole mass of air surrounding the Earth C) the layer of the Earth's atmosphere that is the closest to the earth D) the second layer of the Earth's atmosphere from the Earth's surface
A) anything that has to do with breathing and taking in oxygen and releasing carbon dioxide B) the layer of Earth's atmosphere that is closest to the Earth C) the second layer of the Earth's atmosphere from the Earth's surface D) the whole mass of air surrounding the Earth
A) an element that pollutes B) something that is poisonous or deadly if it is eaten, touched, or inhaled in large enough quantities C) impurities in the air, water and land that create and unclean environment D) visible emissions from a smokestack or chimney
A) anything that has to do with breathing and taking in oxygen and releasing carbon dioxide B) visible emissions from a smokestack or chimney C) ground level fog and smoke D) combination of all that exists around us which is necessary for us to survive
A) visible emissions from a smokestack or chimney B) ground level fog and smoke C) impurities in the air, water and land that create an unclean environment D) anything that has to do with breathing and taking in oxygen and releasing carbon dioxide
A) something that is poisonous or deadly B) coal, oil, and natural gas formed from the remains of ancient plants and animal life C) impurities in the air, water and land that create an unclean environment D) ground level fog and smoke |