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