Alandform characterized by high evaluation and a more or less level surface is called a mountain b plane c plateau d hill

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.

Why do so many children develop illnesses in southern africa? a. poor nutrition due to poverty c. very bad air pollution b. climate many diseases thrive d. declining life expectancy