When snowy and icy roads abound in northeastern winters, there is ...

[jeatrice]

When snowy and icy roads abound in northeastern winters, there is a problem with fresh water ______________ levels.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

A comprehensive explanation of some aspect of nature that is supported by a considerable body of evidence is called a ___________.
 
  Fill in the blank(s) with the appropriate word(s).

[Joc]

Answer to Question 1

salinity

Answer to Question 2

Theory

[jeatrice]

TYSM

[pangili4]

Thanks for the timely response, appreciate it