Function of a Sentence or Paragraph Practice Test

Passage:

In discussions of urban heat, policymakers often treat tree planting as an unalloyed good: more canopy, the reasoning goes, must always lower temperatures. Yet this assumption overlooks how cooling is produced. Shade reduces incoming solar radiation, but evapotranspiration—the release of water vapor from leaves—can be equally important, and it depends on adequate soil moisture. In drought-prone cities, trees with high water demand may provide substantial shade while simultaneously intensifying competition for limited water, prompting restrictions that reduce irrigation for all vegetation.

A recent modeling study compared two greening strategies across neighborhoods with similar building density. The first emphasized fast-growing, high-canopy species; the second used smaller, drought-tolerant species paired with reflective pavement. Under typical summer conditions, both strategies reduced daytime surface temperatures. During simulated multiweek droughts, however, the high-canopy strategy lost much of its cooling benefit as stomata closed and evapotranspiration declined, whereas the mixed strategy retained more stable cooling.

These results do not imply that large-canopy trees are a mistake. Rather, they suggest that planting programs should be evaluated as water-and-heat interventions together, not as a single-variable canopy target.

The primary function of the final paragraph is to:

Passage:

In organizational research, “psychological safety” is often invoked to explain why some teams learn faster than others. The term is sometimes treated as a synonym for comfort, as if a psychologically safe workplace were simply one in which no one feels stress. But the original construct is narrower: it refers to a shared belief that interpersonal risk—admitting error, asking a basic question, offering a dissenting view—will not be punished.

This distinction matters because a team can be demanding without being punitive. A surgical unit that expects rigorous preparation may still encourage residents to speak up about a suspected mistake, whereas a unit that avoids conflict may discourage such warnings by rewarding deference. In the first case, stress accompanies high standards; in the second, comfort coexists with silence.

If managers conflate safety with ease, they may attempt to raise it by lowering expectations, thereby reducing the very feedback that enables learning. Improving psychological safety, by contrast, often requires clarifying norms for disagreement and making it routine to surface uncertainty.

The primary function of the first paragraph is to: