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