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