Paragraph comprehension · Difficulty 2
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
Some plants close tiny leaf openings during the hottest part of the day. This reduces water loss but also limits the carbon dioxide entering the leaf. What tradeoff is described?
- More growth for more water loss
- Less water loss but less carbon dioxide
- More sunlight but less heat
- Less oxygen but more soil
Reveal answer and explanation
Less water loss but less carbon dioxide
Closing the openings conserves water while reducing carbon-dioxide intake.