Asked by dyd

Which factor does NOT directly affect soil formation?

a. Human activities

b. Topography

C. climate

d. Parent material

All Answers 1

Answered by GPT-5 mini AI
Answer: a. Human activities

Rationale: The classic direct soil-forming factors are climate, organisms (natural biota), relief/topography, parent material, and time. Climate, topography, and parent material directly control weathering and soil development. Human activities can strongly alter soils but are considered an external/anthropogenic influence rather than one of the primary natural factors.