Which factors make central america important to u. s. foreign policy?
coal mining
military bases
technological innovations
the panama canal

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

Ahis which describe the horizons in a soil profile? check all that apply. horizon a is mineral deficient. bedrock lies below the soil layers. te horizon o forms from organic material, horizon b undergoes the least amount of change. horizon c is least affected by the soil formation process.

Iceland has taken advantage of its geology to meet a. political needs b. energy needs c. cultural needs d. economic needs answer b. energy needs