Which term means material is bounced along by the moving water?

Which term means material is bounced along by the moving water?

• A. Saltation
• B. Secondary sector
• C. Pull factors
• D. Re-urbanisation

Answer: (A)

In rivers, material transport happens in different ways, and saltation describes a hopping motion along the bed. The flow is strong enough to lift grains briefly off the riverbed, but not to keep them in suspension. The grains then fall back and collide with the bed, dislodging other particles and continuing downstream. This creates a series of short hops or bounces along the bottom, which is why you hear about bedload moving by saltation. The other terms relate to industry or human migration/urban change, not how riverbed material is moved by water.

In rivers, material transport happens in different ways, and saltation describes a hopping motion along the bed. The flow is strong enough to lift grains briefly off the riverbed, but not to keep them in suspension. The grains then fall back and collide with the bed, dislodging other particles and continuing downstream. This creates a series of short hops or bounces along the bottom, which is why you hear about bedload moving by saltation. The other terms relate to industry or human migration/urban change, not how riverbed material is moved by water.