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