The location of natural resources in Africa contributes to its economic diversity, In Tanzania much of the economic activity relates to
while in Sierra Leone the economy centers on
A. agriculture; drilling
B. drilling, mining
C. mining, agriculture
D. agriculture; mining

Which statements about wells are true? check all that apply. a) wells bring groundwater from the unsaturated zone to the surface of the water. b) wells need to be drilled below the water table. c) if water is pumped from a well too quicky, the well may run dry. d) water from wells is generally not safe to drink. e) water gushes from artesian wells due to pressure.

Mengapakah wujudnya perbezaan tanggapan terhadap sumber?

Which of the following graphs represents exponential decay