I believe the answer would be option B. Hope that helps.
Answer: Two characteristics define brightness: luminosity and magnitude. ... The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth.
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Nuclear chemistry is the sub-field of chemistry dealing with radioactivity, nuclear processes, and transformations in the nuclei of atoms, such as nuclear transmutation and nuclear properties.
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Lemme get brainliest please.
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https://www.nationalgeographic.org/article/hydrologic-cycle/#:~:text=The%20water%20cycle%20consists%20of,evaporation%2C%20condensation%2C%20and%20precipitation.&text=Evaporation%20is%20the%20process%20of,evaporates%20and%20becomes%20water%20vapor.&text=Water%20vapor%20is%20also%20an%20important%20greenhouse%20gas.
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Wedging (for the first one)
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