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Sec 1: Atmosphere
| Question | Answer |
|---|---|
| Albedo | The measure of how much sunlight a surface reflects. Lighter surfaces, like ice and snow, have a high albedo, while darker surfaces, like forests or oceans, have a low albedo. |
| Carbon Dioxide (CO₂) | A greenhouse gas found in Earth's atmosphere. It is released by natural processes like volcanic eruptions and human activities such as burning fossil fuels. |
| Electromagnetic Spectrum | The full range of energy waves, including visible light, infrared radiation, and ultraviolet light. These waves travel through space and carry energy. |
| Energy Budget | The balance between the energy Earth receives from the Sun and the energy Earth radiates back into space. This balance affects the planet’s climate. |
| Global Wind | Large-scale wind patterns across the Earth's surface that help distribute heat and moisture around the planet. Examples include the trade winds and the westerlies. |
| Greenhouse Effect | The process where certain gases in Earth's atmosphere trap heat from the Sun, keeping the planet warm enough to support life. |
| Infrared Radiation | A type of energy from the Sun that we cannot see but can feel as heat. |
| Troposphere | The lowest layer of Earth's atmosphere, where weather occurs and where most of Earth's air is found. |
| Visible Light Radiation | The part of the electromagnetic spectrum that we can see. It includes all the colors of the rainbow. |
| Volcanic Outgassing | The release of gases, including water vapor, carbon dioxide, and sulfur dioxide, from volcanoes into the atmosphere during eruptions. |