Why is recycling of aluminum better for the environment than ...

[robinn137]

Why is recycling of aluminum better for the environment than electrolysis of bauxite (an aluminum ore)?
 
  A) It takes less energy to recycle aluminum.
  B) Electrolysis releases harmful gases into the atmosphere.
  C) The bauxite is extremely rare and there is very little aluminum in the world.
  D) Electricity is extremely cheap and it is better to use cheap electricity.
  E) none of the above

Question 2

Which is better for a plant: an ammonium ion from compost or an ammonium ion from synthetic fertilizer?
 
  A) from compost
  B) from synthetic fertilizer
  C) It depends upon weather conditions where moist environments tend to favor naturally occurring ammonium ions.
  D) An ammonium ion is an ammonium ion no matter where it is from.

[vseab]

Answer to Question 1

A

Answer to Question 2

D

[robinn137]

Excellent

[covalentbond]

Gracias!