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