Analogy: Hill is to Mountain as Stream is to ____. Choose the larger/natural counterpart, paralleling the increase in scale.

Introduction / Context:
Scale analogies compare a smaller natural feature with its larger counterpart. A mountain is a larger form compared to a hill. We seek the larger natural counterpart to a stream.

Given Data / Assumptions:

• Hill → smaller elevated landform; mountain → larger.
• Stream → smaller flowing body of water.
• We want the natural, larger-flow analogue.

Concept / Approach:
“Stream : River” mirrors “Hill : Mountain” as small-to-large within the same category (fluvial vs orographic). Canal is artificial; glacier is ice; avalanche is a rapid downslope mass movement—not a watercourse.

Step-by-Step Solution:
Identify categorical continuity: stream and river are both flowing water bodies.Check size relation: river is larger than stream.Eliminate non-matching categories (man-made or non-liquid features).

Verification / Alternative check:
Substitution test: “As a mountain is a larger version of a hill, a river is a larger version of a stream.”

Why Other Options Are Wrong:
Canal: artificial construct. Glacier/avalanche: not liquid-flow channels.

Common Pitfalls:
Picking “canal” due to flow association; the analogy seeks natural counterparts.

Final Answer:
River.