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