Which of the following is the most responsible for air pollution in the US and Canada

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.

Write a 150-word essay describing the effect of people's activities on the environment in the region.

The earth's internal process which drives seafloor spreading is