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