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