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