Problem:OPTIONS:
- blindness and astigmatism
- myopia and nearsightedness
- cross-eye and blindness
- nearsightedness and farsightedness

Q: What are two of the most common vision problems? A:
****
A: nearsightedness and farsightedness

Q: What is water vapor density known as? A:
OPTIONS:
- density
- thickness
- ambiance
- humidity
humidity

Q: What do willow trees produce to kill bacteria? A:
OPTIONS:
- facultative acid
- Posion
- bacterial acid
- salicylic acid

Answer: salicylic acid

Question: Q: The concentration of hydrogen ions in a solution is called? A:
OPTIONS:
- alkalinity
- alcohol
- moisture
- acidity
Answer: acidity

input with options: Q: The posterior pituitary is an extension of what anatomical structure? A:
OPTIONS:
- brain stem
- frontal lobe
- hippocampus
- hypothalamus
output: hypothalamus

Problem: OPTIONS:
- Earth
- Venus
- Pluto
- mercury
Q: Q: What planet is closest to our sun? A:
Answer:
mercury