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