ALWAYS READY, CONNECTED, AND FAST For Alexa device owners, the free Amazon Alexa App is a companion to your Alexa device for setup, remote control, and enhanced features. Alexa is always ready to play your favorite music, provide weather and news updates, answer questions, create lists, and much more.
Air pollution is the introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing diseases, allergies, death to humans, damage to other living organisms such as animals and food crops, or the natural or built environment.
A list of the human causes of air pollution includes vehicles, domestic smoke and heating, aircraft pollution, outdoor fires, and incineration of waste. To reduce the problems of air pollution, people should be more aware of their actions in these areas. 1  Human Activity: An overview of how human activity affects air pollution. 2  Air Toxics: A look at mercury and other air toxic emissions associated with production of electricity.