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