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