The solar constant is
A)a consistent amount of energy received at the top of the atmosphere.
B)the same for a sphere or for a circle.
C)only about a quarter of all energy emitted by the sun.
D)the same value for all planets,even Neptune.

Question

Quizplus · Accepted Answer

The solar constant represents the amount of energy that is received at the top of the Earth's atmosphere, with a value of approximately 1361 watts per square meter. This value is consistent and does not change significantly over time.

The Solar Constant Is