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