Question

question: which type of motion does not contribute to slope failure? answer options: select one of four shear flow slide fall

Explanation:

Slope failure (mass wasting) involves movements like flow (e.g., creep, debris flow), slide (along a plane), and fall (free-falling material). Shear is a type of stress (force per unit area) that can trigger slope failure (by exceeding shear strength), not a motion contributing to slope failure directly. The other options are mass - wasting motions.

Answer:

Shear