Answer:
Sonar, short for Sound Navigation and Ranging, is helpful for exploring and mapping the ocean because sound waves travel farther in the water than do radar and light waves.
Explanation:
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Brain Is the answer to the question
The Time Traveller’s friends feel about the credibility of his story at first in The Time Machine, as they think he made up the story.
Because the story made them feel it was so impossible to tell if The Time Traveler would be serious or not, his pals did not think he had created a time machine. Because of this, his pals believed he was simply kidding. He is incredibly brilliant, according to all of his visitors, yet in Britain, the word "clever" is sometimes used to denote "too clever" or "smart aleck."
The Time Traveler story is, in the words of the unidentified narrator, "too smart to be believed." Though a prodigy in science, he also enjoys making jokes. Thus, The Time Traveller’s friends feel about the credibility of his story at first in The Time Machine, as they think he made up the story.
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Answer: 2. chronology
Explanation: The definition of chronological is "starting with the earliest and following the order in which they occurred." from the very definition, we see that chronology is the order in which things happen.