Which of the following characterizes the production of crude oil from oil sands? 

A)  Large quantities of water are used. 
B)  Little waste is created. 
C)  Little energy is used. 
D)  Small quantities of air pollution are released.

What is the view of most Canadians,in terms of the Species at Risk Act? 

A)  They feel that the Species at Risk Act needs to be applied less widely and seriously. 
B)  They feel the Species at Risk Act is doing enough. 
C)  They support the Species at Risk Act in principle but are unhappy with certain flaws. 
D)  They have not embraced the Species at Risk Act.

Which of the following largely determines an atom's atomic weight?

A) the number of neutrons
B) the number of electrons
C) the number of electrons in the outer shell
D) the number of protons and neutrons