input with options: Q: What is the term for the use of two or more lewis structures to represent the covalent bonding in a molecule? A:
OPTIONS:
- reaction
- harmony
- frequency
- resonance
output: resonance

input with options: Q: What is created when the wave source moves faster than the wave propagation speed? A:
OPTIONS:
- loop wake
- piece wake
- superceding wake
- bow wake
output: bow wake

input with options: Q: Fish and other aquatic organisms use gills to capture dissolved what? A:
OPTIONS:
- food
- sulfur
- nitrogen
- oxygen
output: oxygen

input with options: Q: Exposure to what can increase the amount of pigment in the skin and make it appear darker? A:
OPTIONS:
- gamma rays
- sunlight
- nuclear radiation
- ultraviolet radiation
output:
ultraviolet radiation