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