Respuesta :
					                   The exosphere is the outermost region of a planet's atmosphere.
So I would chose the last statement. "It is the last layer of the atmosphere before space."
I hope this helps!
					                
					                
					             So I would chose the last statement. "It is the last layer of the atmosphere before space."
I hope this helps!
**It is the last layer of the atmosphere before space.** Hope It Helped. :)
 
			                  