This chapter is designed to teach you: 1  The shifts in perspectives throughout American history. 2  Characteristics of various literary periods. 3  Famous authors and their works.  How to classify American literature within a movement.
Antarctica global warming has become a burning issue of the present time. Global warming in Antarctica will pose a serious threat to the rise in water level. Hence, Antarctica global warming has become a great concern for the scientists and researchers. As most of this continent is covered by ice, the impact of global warming is more acutely felt here. With the increase in the number of automobiles, air pollution has been on the increase in the last 20 years. This is one of the major causes of global warming.
No country or nation is a recognized âownerâ of Antarctica but several nations do claim pie-shaped slices of the continent. Thanks to an international treaty signed in 1959, only one thing rules Antarctica â science.he continent that surrounds the south pole comprises nearly 10% of the earthâs landmass. Itâs also extremely cold. The annual average temperature is -50Â°C and 98% of Antarctica is covered by ice that averages a mile thick.