Chapter 20 Environmental Science Flashcards

Atmosphere is composed of seventy eight percent nitrogen, 20 percent oxygen .93 percent argon and .04 carbon dioxide,

Blocks uv radiation, moderates climate, and redistributes water using hydrologic cycle.

Harmful substance emitted directly into the atmosphere

Harmful substance formed when primary air pollutant reacts with atmospheric constituents or other air pollutants.

Primary converted to secondary pollutants through atmospheric chemical reactions, reactants include atmospheric moisture and gases, energy source is the sunlight.

Population growth, affluence and deforestation, classes are nitrogen, sulfur, carbon hydrocarbon and ozon, also particulate matter PM.

Solid and liquid particles that are suspended in the air, thousands of different compositions and sizes, include soil particles soot lead asbestos sea salt, sulfuric acid droplets, it causes adverse health effects repairable particles enter Deep into lungs, may contain toxic substances

Produced by chemical interaction between atmospheric N AND O, at high temps. greenhouse gas that negatively affect breathing.

Produced by chemical interaction between s & o, causes acid precipitation.

Carbon monoxide and carbon dioxide, greenhouse gases produced by fossil fuel combustion and respiration.

They are a diverse group of organic compounds, that contain primarily c and H contribute to photochemical smog and greenhouse gases.

Is both tropospheric and stratospheric.

Anthropogenic pollutant in lower atmosphere it is a secondary air pollutant, component of photochemical smog. too low and reactive stratospheric ozone.

Essential component that screens out UV radiation in upper atmosphere, destroyed by anthropogenic pollutants.

Ozone is o3 and is a reactive gas, it can oxidize organic matter and cause chemical burns.