Some Canadians view NAFTA as a threat to their...

Question 13 options: security. privacy. economy. culture.

Explain why components that are naturally found in air can be considered air pollutants.

Most of earths fresh surface water is found in

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons