Why is it significantly less costly to purify fresh water through ...

[Zulu123]

Why is it significantly less costly to purify fresh water through reverse osmosis than to purify salt water through reverse osmosis?
 
  A) The osmotic pressure exerted by fresh water is less.
  B) The osmotic pressure exerted by fresh water is greater.
  C) For non-coastal regions, the salt water needs to be transported many miles from the oceans.
  D) The expense of reverse osmosis is not dependent upon the salt concentration in the water.

Question 2

The scanning probe microscope ________.
 
  A) uses very large mirrors and lenses to enhance an image
  B) can scan small things from a large distance away, such as the surface of the Moon
  C) characterizes the surface atoms of a material
  D) vaporizes a substance, then analyzes and manipulates the components

[alexisweber49]

Answer to Question 1

A

Answer to Question 2

C

[Zulu123]

Thanks for the timely response, appreciate it

Great answer, keep it coming