Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-46
Section: Logical Reasoning
Topic: Strengthen
Difficulty level: Easy

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Hydrologist: Over the next several decades, average summer temperatures across the Great Plains are expected to rise. Warmer air can hold more moisture, so thunderstorms in the region will likely release heavier downpours than they do now. Consequently, flash-flood events on small streams in the Great Plains will probably become both more frequent and more severe.

Which one of the following, if true, would most strengthen the hydrologist's argument?

AHistorical records show that, during unusually warm summers, Great Plains thunderstorms have tended to concentrate rainfall into shorter time intervals, producing higher peak runoff into local streams.

BClimate models predict that total annual precipitation on the Great Plains will remain roughly unchanged even as average temperatures climb through the middle of the century.

CIn other mid-latitude regions worldwide, increases in average summer temperature have coincided with a measurable decline in the total number of thunderstorm days each year.

DSoil-conservation projects scheduled for completion over the next ten years will expand the vegetative cover along many Great Plains streambanks.

EEmergency-management agencies across the Great Plains have recently upgraded their flood-warning systems to provide rural communities with faster alerts during severe storms.

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