Do you believe humans are responsible for global warming or do you believe this is part of a natural cycle of the earth, like periodic ice ages? Use your research to support your opinion.

What is the approximate circumference of the circle shown below? 12.2 cm

Where was oil production at its highest in the 1980s and still remains important to the russian economy? central asia the ural mountains russian siberia the caucasus region

How have ethnic groups shaped the population in central america and the caribbean? how has migration shaped the population in central america and the caribbean? how has small land areas shaped population in central america and the caribbean? how has a rapid population growth shaped the population in central america and the caribbean?