General science · Difficulty 3
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.
Which situation is the best example of acid?
- A passenger moves forward when a vehicle stops suddenly.
- A skin cell divides to support growth and repair.
- Plants, animals, soil, and water interact in a wetland.
- Lemon juice turns blue litmus paper red.
Reveal answer and explanation
Lemon juice turns blue litmus paper red.
acid is a substance that donates hydrogen ions in water and has a ph below 7. Lemon juice turns blue litmus paper red.