Which of the following techniques is the simplest way to make ...

[londonang]

Which of the following techniques is the simplest way to make water safe to drink?
 
  A) implementing river diversion projects B) eliminating community wells
  C) using solar radiation to purify water D) employing modified irrigation technology

Question 2

Water is purified through SODIS by leaving water in the sun, in clear plastic containers, for at least ________ hours.
 
  A) 4 B) 7 C) 5 D) 6

[sarah_brady415]

Answer to Question 1

C

Answer to Question 2

D

[londonang]

Thanks for the timely response, appreciate it

[diana chang]

Wow, this really help