How do the gps and gis technologies in portland, oregon, improve public transportation in that city?

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.

Hurry on the map above, arrow 1 points to a region where most people are