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