HELP ME? Please help me o don’t know the answer

Explain why components that are naturally found in air can be considered air pollutants.

In the diagram below, ab and bc are tangent to o. what is the measure of

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.