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-the star at the center of the Solar System.
=It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields. |
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-an iron bar heated in a fire glows red.
-At room temperatures the radiation emitted by the bar is in the far infrared region of the electromagnetic spectrum and cannot be seen except with cameras with infrared imaging capability. |
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| Certain gases, particularly water vapor, carbon dioxide, methane, and some nitrogen oxide pollutants |
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Definition
| transmit visible light but absorb infrared light. |
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what's greenhouse effect?
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Definition
| -process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. |
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Definition
| is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. |
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