Which of the following is not a technique used for the desalination of salt water?
a. freezing
b. distillation
c. chemical precipitation
d. reverse osmosis
c
Environmental & Atmospheric Sciences
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One method of desalination uses high pressure to force saltwater through a membrane filter. This method is called ____.
A. diffusion B. distillation C. reverse osmosis D. active transport E. passive transport
Environmental & Atmospheric Sciences
Color is a reliable identification technique for minerals
Indicate whether this statement is true or false.
Environmental & Atmospheric Sciences
Which of the following is generally called "good cholesterol?"
A) chylomicrons B) HDL C) LDL D) VLDL
Environmental & Atmospheric Sciences
The original Clean Air Act in the United States was enacted in ____.?
a. ?1946 b. ?1955 c. ?1970 d. ?1977 e. ?1990
Environmental & Atmospheric Sciences