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