The recognized standard means of inquiry used by research scientists is the method.

preservation because he preserves part of the land and preserves means save

explanation:

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.