Energy balance in the Sun refers to a balance between
A) the rate at which fusion generates energy in the Sun's core and the rate at which the Sun's surface radiates energy into space.
B) the mass that the Sun loses each second and the amount of mass converted into energy each second.
C) the force of gravity pulling inward and the force due to pressure pushing outward.
D) the amount of energy the Sun radiates into space and the amount of energy that reaches Earth.
A) the rate at which fusion generates energy in the Sun's core and the rate at which the Sun's surface radiates energy into space.
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What will happen to our Hydrogen and Helium nuclei in order to form Hydrogen and Helium atoms?
A.) Have to add protons. B.) Have to add neutrons. C.) Have to add electrons. D.) Have to add photons. E.) Have to add down quarks.
Imagine a planet whose rotation axis is tilted all the way over on its side. How would you describe its seasons?
What will be an ideal response?
Most astronomers agree to interpret ________ Law to mean that the present day universe is expanding
Fill in the blank(s) with correct word
The Paleozoic era began about how many million years ago?
a. 65 b. 545 c. 245 d. 3