Self-paced · U.S. History

Trace land-cover change into stormwater runoff — teaching bridge

Narrow human-geography mechanism bridge connecting development, impervious cover, infiltration, and runoff.

1 focused skill · About 25 minutes · Untimed

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A short diagnostic

Answer 2 questions before studying. Two questions sample each skill; an unanswered skill is not a failed skill. You can change answers until you check them.

Two equal plots receive the same rain. One is a garden with unsaturated soil; the other is a conventional concrete plaza draining into a gutter. Which process is most directly reduced at the plaza’s covered surface?

Cloud formationEvaporation from the oceanInfiltration into the underlying soilThe force of gravity

A town adds residents but preserves the same amount and pattern of planted ground through compact construction. Which conclusion is best?

Every additional resident must create an identical amount of runoff.Runoff cannot occur anywhere that has planted ground.Population growth always makes rainstorms longer.Resident count alone is insufficient to predict a large runoff increase; the resulting land cover and drainage matter.