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