Does "For example, in Thai, Hindi, and Quechua, there are minimal pairs of words for which aspiration is the only contrasting feature (two words can have different meanings but with the only difference in pronunciation being that one has an aspirated sound where the other has an unaspirated one)." contain the correct answer to "What is another word for variations?"

A: no

Does "The FAA became more involved with the environmental aspects of aviation in 1968 when it received the power to set aircraft noise standards." contain the correct answer to "When did the FAA become more involved with the environmental aspects of aviation?"

A: yes

Does "The second-highest major peaks are Monte Rosa at 4,634 m (15,200 ft) and Ortler at 3,905 m (12,810 ft), respectively" contain the correct answer to "The highest peak of the Western Alps is where?"

A:
no