Free Practice Question
CR · Critical Reasoning
505-555
Resolve a Paradox
Plant saplings in greenhouses usually take 40 days to grow into plants that can produce flowers. However, when the greenhouse is smeared with oil, the saplings grow into flower-bearing plants within 30 days even though the intensity of light entering the greenhouse is reduced by 30%.
Which of the following hypotheses best explains the contrast described above?
Which of the following hypotheses best explains the contrast described above?
Answer Choices
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While visible light enables essential processes required for nutrient absorption, ultra violet light hinders some essential growth processes in plants.
B
Reducing the intensity of light entering the greenhouse by only 15% results in saplings to grow into flower-bearing plants within 45 days.
C
Oil smeared on the green houses has a high chance of seeping inside the greenhouse through the soil.
D
The green wavelength in visible light – the spectrum of light known to reduce the rate of nutrient absorption among numerous plant species – has a hard time passing through an oiled transparent barrier.
E
Greenhouses that aren’t smeared with oil allow light to pass through them with little loss in intensity.
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Difficulty
505-555
Type
CR