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The average luminance of the Sun is about 1.88 giga candela per square metre, but as viewed through Earth's atmosphere, this is lowered to about 1.44 Gcd/m2. However, the luminance is not constant across the disk of the Sun (limb darkening).
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Ocean Basin
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Ocean basin, any of several vast submarine regions that collectively cover nearly three-quarters of Earth's surface. Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km (about 2.5 miles).
from Britannica.com
 
        
             
        
        
        
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<h2>Here is the correct answer </h2>
(● D. Depending on where you live, you may pay no state income taxes.)
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<h3>STUDY CORRECTION. </h3>