Answer:
El sistema nervioso tiene dos partes principales: El sistema nervioso central está compuesto por el cerebro y la médula espinal. El sistema nervioso periférico está compuesto por todos los nervios que se ramifican desde la médula espinal y se extienden a todas las partes del cuerpo.
The foil method is a method to factor an expression. For example: FFWw. The question is simply trying to confuse you. Turn FFWw into (FF)(Ww) then solve as shown:
<span>To form soil, the two processes which must occur are erosion and weathering, so the correct answer here is B. Soil formation is a continuous process, but also one which takes a long time. It can sometimes more than five hundred years for 1cm of soil to form.</span>
