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