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