Ken is driving to class one day when the light on his car's gas gauge turns red. To avoid running out of gas, he pulls into the nearest gas station. According to the principles of operant conditioning, the presence of the gas gauge light turning red is a(n) , and the filling up of the gas tank is the .

Ineed answers fast how do conflict and cooperation among groups and organizations influence the development of the world? 1. choose two of the following topics: ethnicity and race, working conditions, immigration, military conflict, economic stability. 2. discuss how these two topics impact the development of countries. provide examples. 3. post your response to your teacher.

What did william shakespeare spend part of his money on

attempts to categorize types of grandparents have not been very successful because