10. define the three main forms of farming in africa
a. subsistence farming.
b. commercial farming.
c. sedentary farming.

Which of the following lakes is not found in africa?

The rocky mountain system stretching from canada to new mexico is a string of mountains running along the wester united states. what factors would mostly cause this arrangement of mountains? intense pressure undemeath a tectonie plate that could not breakthrough the rock subduction of a tectonic plate, which pushed up a neighboring plate into mountains two plates located at a diverging boundary with a third plate rising between them two plates that melted into molten rock, which later cooled into the shape of mountains

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d