Information and Ideas practice question

Answer: B. "By cooling buildings and cleaning the air, rooftop gardens make cities more livable."

The claim is that the author sees rooftop gardens as beneficial. Only B states a benefit ('make cities more livable'). A notes a drawback; C and D are neutral facts that don't show a positive view.

Why the other answers are wrong

A. "Rooftop gardens require regular watering and maintenance."

Watering and maintenance is a cost or drawback — the opposite of the positive view the student is claiming.

C. "Some cities have thousands of unused rooftops."

Unused rooftops is a neutral fact about available space; it never says gardens do anything good for the city.

D. "Rooftop gardening dates back to ancient civilizations."

The age of the practice is a neutral historical detail — being ancient isn't the same as being beneficial to city life.

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