input with options: Q: Carbon dioxide does not rise like other gases because it has a density greater than what? A:
OPTIONS:
- gravity
- light
- water
- air
output: air

input with options: Q: What were the first particles with mass to be directly confirmed to have the wavelength proposed by de broglie? A:
OPTIONS:
- negatrons
- protons
- ions
- electrons
output: electrons

input with options: Q: Who built the first telescope? A:
OPTIONS:
- newton
- brahe
- copernicus
- galileo
output: galileo

input with options: Q: What do you call the ability to sense sound energy and perceive sound? A:
OPTIONS:
- tuning
- sensory deprivation
- echolocation
- hearing
output:
hearing