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