input with options: Q: What renewable energy source converts energy from the sunlight into electricity? A:
OPTIONS:
- geophysical energy
- geothermal energy
- hydrostatic energy
- solar energy
output: solar energy

input with options: Q: What global cycle takes place on, above, and below earth's surface? A:
OPTIONS:
- aqua cycle
- water flow
- water wheel
- water cycle
output: water cycle

input with options: Q: The surfaces of the bones at the joints are covered with a smooth layer of cartilage, which reduces what force between the bones when they move? A:
OPTIONS:
- vibration
- expulsion
- gravity
- friction
output: friction

input with options: Q: Which common element is the most found in living organisms? A:
OPTIONS:
- hydrogen
- oxygen
- monoxide
- carbon
output:
carbon