What percent of the Sub-Saharan Africa population is under the age of 15 years?
A) 43%
B) 55%
C) 70%
D) 25%
E) 63%
Answer: A
You might also like to view...
Why does a plume of contamination spread out (become wider) away from the source of contamination?
A) Because the water flows faster and faster
B) Because of diffusion of the contamination and mixing of contaminated and uncontaminated water
C) Does not spread out away from the source
D) Will only spread out if it is close to a cone of depression
List some ways in which organisms contribute to mechanical weathering. What will be an ideal response?
________ are the down-dropped areas in the middle of spreading-center domes that are being pulled apart.
A. Horsts B. Rift valleys C. Escape basins D. Gap holes E. Junctions
Which base is an important starting material in the manufacture of fertilizers?
A) LiOH B) Mg(OH)2 C) NaOH D) NH3