What percent of Africans live in sub-Saharan Africa

Topsoil loss in semi-arid areas can lead to what ecological problem? increase in numbers of foraging animals desertification Buildup of organic carbon in the soil decreased erosion humidification of the soil

Select all of the answers that apply. Earth's climate history can be studied by analyzing, soil and dirt ice cores and rock records oceans and lakes fossils of plants and animals

As rocks are weathered and eroded, what do wind and water often transport to a new location? a. sediments b. chemicals c. rock layers d. river systems

How many miles of border does the us share with mexico?

Twice a day the tide moves from london to the ocean and

The widespread presence of banana plantations in central america region has resulted in increased standard of living

Which of these has been the result of human activity? a) glaciers melt more b) volcanoes erupt more landslides happen more d) earthquakes happen more

Which types of stars have extremely intense gravitational and magnetic fields?

What happened in Russia as a result of actions taken by Peter the great

At independence, the most prosperous country of former French Western Africa was A. Chad B. Senegal C. Côte d'Ivoire D. Benin