input with options: Q: The ph scale is a scale used to express the concentration of hydrogen ions in solution. a neutral solution, neither acidic nor basic, has a ph of what? A:
OPTIONS:
- 6
- 0
- 8
- 7
output: 7

input with options: Q: Plants can absorb inorganic nutrients and water through their root system, and what gas from the environment? A:
OPTIONS:
- hydrogen dioxide
- nitrogen dioxide
- chemical dioxide
- carbon dioxide
output: carbon dioxide

input with options: Q: What do you call the fast-moving air currents high in the troposphere? A:
OPTIONS:
- stationary fronts
- wind streams
- cyclones
- jet streams
output: jet streams

input with options: Q: What force causes waves to topple over and break on the shore? A:
OPTIONS:
- momentum
- tension
- vibration
- friction
output:
friction