Geological size order — choose a meaningful progression 1. Stone 2. Sand 3. Rock 4. Boulder 5. Hill

Introduction / Context:
This sequence compares common geomaterials/landforms by typical size. The goal is to move from the smallest particulate to the largest landform.

Given Data / Assumptions:

• Sand (granular, smallest in this set).
• Stone (hand-sized piece of rock).
• Rock (larger mass of lithic material).
• Boulder (very large rock fragment).
• Hill (landform far larger than individual rocks).

Concept / Approach:
Order by increasing size/scale.

Step-by-Step Solution:
Sand (2) → Stone (1) → Rock (3) → Boulder (4) → Hill (5).

Verification / Alternative check:
Common-sense scaling and geomorphology vocabulary confirm this ordering.

Why Other Options Are Wrong:

• They misplace granular materials or elevate hills prematurely in the sequence.

Common Pitfalls:
Equating “rock” and “stone” as synonyms; within this question, treat stone as smaller than a rock mass.

Final Answer:
2, 1, 3, 4, 5