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