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