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