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