What geologic process is related to caldera formation?

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.

The language and religion of france developed from which people? a. the franks b. the gauls c. the anglo-saxons d. the romans

Sink holes may eventually for to join a. wide valleys b. zone of aeration c. dripstones d. aquifer