Which of the following are two mechanisms for water pollution?
a. high and low
b. direct and indirect
c. lethal and nonlethal
d. harmful and innocuous

Adisadvantage of adding a vegetarian hot-food option to a school lunch menu is that it would a. force all students to change their diets. b. eliminate a meat option from the menu. c. only some students on special diets. d. increase the amount of food that is wasted.

How can health insurance increase life expectancy

The creation of the european union has had all of the following effects except