ACT Science Practice Question #1508 (Medium (30)) | Test Citadel
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ACT Science Difficulty: Medium (30)

Digital ACT Science Practice Question #1508

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Tracers measured groundwater contaminant plume speed in two aquifer formations: - Formation 1 (Coarse Gravel): Velocity = 14.5 m/day - Formation 2 (Fine Silt): Velocity = 0.08 m/day Contaminant plumes spread much faster in Formation 1 because coarse gravel has:
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Coarse gravel = large connected pores = fast flow.

Masterclass Solution & Distractor Trap Analysis

Coarse gravel has large, well-connected pore spaces offering low resistance to groundwater flow....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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