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