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