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