Why do many environmental groups oppose building more ...

[Shelles]

Why do many environmental groups oppose building more hydroelectric dams when these dams produce virtually no chemical pollutants as they create electric power?
 
  A) Because they increase the rate of evaporation, hence more fresh water is lost.
  B) Because these dams are very expensive to build.
  C) Environmental groups tend to reject all new technological advancements.
  D) Dams can radically alter ecosystems.

Question 2

Which of the following gases does not have a triple bond?
 
  A) hydrogen cyanide
  B) acetylene, C2H2
  C) carbon dioxide
  D) nitrogen

[Heffejeff]

Answer to Question 1

D

Answer to Question 2

C

[Shelles]

Thanks for the timely response, appreciate it

[chereeb]

Gracias!