input: OPTIONS:
- crystallizes
- shrinks
- fractures
- freeze Now, answer this question: Q: In winter, water does what, becoming solid and causing hoses to rupture and engine blocks to crack? A:
A:
output: freeze

Q: What is the hollow sac like organ that stores urine until it is excreted? A:

OPTIONS:
- kidney
- ureter
- tumor
- bladder

Answer: bladder

Problem: OPTIONS:
- high and long
- high and wide
- low and wide
- low and long
Q: Q: What type of amplitudes and wavelengths avoid detection in deep water? A:
Answer: low and long

Problem:OPTIONS:
- rib vertebrae
- arsine vertebrae
- alangulam vertebrae
- coccygeal vertebrae

Q: The coccyx, or tailbone, results from the fusion of four small what? A:
****
A: coccygeal vertebrae

Q: What causes rivers to always flow downhill? A:
OPTIONS:
- slope
- pressure
- diffusion
- gravity
gravity

Q: What changes nitrogen gas from the atmosphere to nitrogen compounds that plants can absorb? A:
OPTIONS:
- tumors
- pathogens
- viruses
- bacteria

Answer:
bacteria