which tools help geographers display data that have been gathered about the population of a spcific location

Why is immigration so important today?

What are the answers for the following questions?

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.