input with options: Q: What is the phenomenon in which light and sound waves become circular at the point source of a barrier? A:
OPTIONS:
- refraction
- sonic wave
- reflection
- diffraction
output: diffraction

Q: Q: In studying energy, what term do scientists use to refer to the matter and its environment involved in energy transfers? A:

OPTIONS:
- molecule
- ecosystem
- world
- system

A: system

input: OPTIONS:
- dorsal fin
- tail fin
- under belly
- gills Now, answer this question: Q: What part of the body do fish use to absorb oxygen? A:
A:
output: gills

Q: Fermat's principle states that what will always take the path that takes the least amount of time? A:

OPTIONS:
- sound
- wind
- electricity
- light

Answer: light

Problem: OPTIONS:
- quasar
- quota
- quasi
- quanta
Q: Q: Energy comes in discrete packages called what? A:
Answer: quanta

Q: In physics, the number of waves that pass a fixed point in a given amount time is referred to as what ? A:

OPTIONS:
- combination frequency
- wave count
- creation frequency
- wave frequency

Answer:
wave frequency