Answer:
Approximately 1,000 to 3,000 earthquakes occur each year in the Yellowstone area; most are not felt. The 1959 Hebgen Lake earthquake (M7.3) caused significant damage to park roads, show here near Gibbon Falls. ... Approximately 700 to 3,000 earthquakes occur each year in the Yellowstone area; most are not felt.
Explanation:
"A" goes to 4
"B" goes to 2
"C" goes to 3
"D" goes to 1
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The physics of blackbody radiation that enabled us to understand the variation of stellar colors. It was noticed that the spectra of stars look extremely similar to blackbody radiation curves of various temperatures. Ranging from a couple of thousand kelvin to ~50,000 kelvin. Stars are similar to blackbodies and the color variation of stars is a direct consequence of their surface temperatures. To estimate the surface temperature of a star, we can use the known relationship between the temperature of a blackbody and the wavelength of light where the spectrum peaks. As you increase the temperature of a blackbody, the peak of its spectrum moves to shorter (bluer) wavelengths of light.
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