Why is soil important for agriculture?

Correct answer: It provides nutrients and support to crops

Soil is a basic agricultural resource because it anchors plant roots and stores water and dissolved mineral nutrients. Plants obtain essential elements from the soil solution, while the soil structure gives roots physical support and permits air and water movement. The quality of soil therefore influences germination, plant growth and crop yield. Option B is correct because it includes both major functions: supplying nutrients and providing support. Option A confuses soil colour with its agricultural role; option C is incorrect because soil does not stop rainfall; and option D is unrelated to soil formation or farming.