All of my scores say it's 29 to thirty, which is the correct answer, so I'm afraid I don't know, my suggestion here would be to go with 20, because if it was forty then we would surely be dead. <span />
Remote sensing satellites
E<span>ach atomic number identifies a specific element, but not the "Ion/Charged particle"
Hope this helps!</span>
D. think of it like a current!
electron -> electron-> electron->
I believe the answer is T<span>hymine, I hope this helps!</span>