Of the following issues, which is the most significant environmental challenge facing Africa today?
deforestation due to the construction of shopping centers and restaurants
desertification caused by poor agricultural practices
C. air pollution resulting from the construction of factories in rural areas
D. erosion of coastal areas because of sinking sea levels

In the developed world, describe the changing role of women in agriculture.

What is the difference between the cultures of central asia and the caucasus region? the majority of people in central asia are muslim; the majority in the caucasus region are christian. the primary language in central asia is armenian; the primary language in the caucasus region is russian. central asia has been plagued by ethnic unrest; the caucasus region has had little ethnic conflict. the effects of soviet rule can still be seen in central asia; the caucasus region has developed its own identity since the fall of the ussr.

In what way does renewable energy differ form nonrenewable energy?