A) photosphere B) core C) chronosphere D) corona
A) lunar eclipse B) flow of protons and electrons from sun C) the aurora borealis D) solar eclipse
A) 2 hydrogen atoms combine B) helium is formed C) nuclear fusion D) all of the above
A) the moon B) the northern lights C) solar winds D) the sunset
A) corona B) chronosphere C) photosphere D) convection zone
A) microwaves B) radio waves C) x rays D) gamma rays
A) radio waves B) gamma rays C) microwaves D) x rays
A) True B) False
A) we can see all of the electromagnetic spectrum B) ultraviolet light C) the visible spectrum D) infered light
A) 1 light year B) 93 million miles C) 93 billion miles D) 93 thousand miles |