Verbal analogy (force → characteristic effect): Identify the pair that mirrors the relationship “gravity : pull”. Context: Gravity exerts a pull (attractive force) on masses. Instruction: Choose the pair where the first physical phenomenon creates the second characteristic effect.

Given data

• Gravity causes an attractive pull.

Concept / Approach
We need a phenomenon → effect mapping. Magnetism produces magnetic attraction, parallel to gravity producing pull.

Option analysis
magnetism : attraction — phenomenon → effect; correct. ✅iron : metal — substance → category; not effect. ❌north pole : directions — location vs concept; not causal effect. ❌dust : desert — component vs environment; not effect. ❌

Final Answer
magnetism : attraction