Why does quicksand trap people?

Answer: Sand and water create suction

Sand and water create suction ✓ — Correct! Quicksand is sand saturated with water flowing upward (from underground spring). This creates a liquefied state—solid enough to look like ground but fluid enough to flow. When you step on it, your weight displaces the sand-water mix. As you struggle, the sand compacts around you creating suction. The harder you fight, the tighter it grips. You won't sink completely (you're less dense), but escaping is hard!

Magnetic forces hold feet — Wrong. No magnetic forces involved. Quicksand's grip comes from suction created when sand compacts around you as water flows out.

Acidic chemicals dissolve skin — Wrong. Quicksand is just sand and water, no chemicals. The danger is getting stuck from suction, not chemical reactions.