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