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