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