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1. when carbon dioxide in the atmosphere increases, the amount of energy absorbed by
the earth's surface

Based on this map, which statement about africa’s economic activity is most accurate? a) coastal countries are all members of opec b) economic development is more common with opec nations c) coastal countries have more access to productive resources d) economic development is more common above the sahara desert

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

The blue segment below is a diameter of oo. what is the length of the radius of the circle?