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