The Atlantic Ocean on the west and Indian Ocean on the east border the region of Saharan and southern Africa. The correct option among all the options that are given in the question is the second option or option "b". I hope that this answer has come to your help.
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4.56 hace millones de años
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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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