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