The best answer here is: pitch (3).
pitch is the level at which your voice operates (this can be high or low) and an optimum pitch is the optimum level for your voice.
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Answer Verified. Hint: Term therm itself has its meaning. Therm seems like the word thermal, thermodynamics. These words are all related to heat also. It measures heat produced in natural gas.
Answer:
Miracle on Ice: When the US Olympic Hockey Team Stunned the World. Grit and an eccentric coach both played a part when the American hockey squad beat the odds and defeated the Soviet team at the 1980 Winter Olympics.
Hope this helps :)