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