Question

Which of the following is defined as combinations of soil particles that vary in size and shape?

Answer 1

Loam is defined as combinations of soil particles that vary in size and shape because it's fertile soil formed by clay and sand, which are components that are very different in size and shape, so the answer's d.

Erosion does not affect soil formation. Soil formation is affected by precipitation, time, parent material and the organisms present in the soil, so the answer's c.

Answer 2

1- The correct answer is B. The combination of soil particles that vary in size and shape is called aggregates.

Aggregates are a type of soil in which their particles are different from each other, but they come together to form a compact mass, which is not affected by water or erosion.

2- The correct answer is D. Neither precipitation, time or erosion affect soil formation.