Nitrogen - The most dominant gas in our atmosphere at present, Greenhouse gas - gas that absorbs heat, Infrared energy - what sunlight turns into when it bounces off earth's surface, Ultraviolet energy - Energy from the sun, Carbon dioxide - an example of a greenhouse gas emitted when fossil fuels are burned, Fossil fuel - oils, gases and rocks made from ancient organisms, Coal - fossil fuel underground used for heat and electricity, Oil - Fossil fuel used to operate our vehicles, Natural Gas - Fossil fuel that is difficult to extract, Millions of year - The amount of time it takes to form a fossil fuel, Troposphere - Layer of our atmosphere where air is concentrated, Stratosphere - Layer of our atmosphere above the layer where we live and breather, Combustion - Burning fossil fuels for energy use, Solar Panels - An example clean energy use, Deforestation - Removing trees from an area that increases carbon dioxide in the atmosphere, Photosynthesis - A process that decreases carbon dioxide in the atmosphere,

The atmosphere

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