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