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