Answer:
Borehole instrument and seismic waves instruments.
Explanation:
Humans have 5 stages ofor sleep, stages 1,2,3,4,5 . They don't really have specific names , but for example stages 1 and 2 are typically characterized as "light sleep" Stages 3 and 4 are "Middle sleep" and part of 4 and 5 are REM. Part two of your question is REM (Rapid Eye Movement) which occurs in stages 4-5.
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As regards this statement on second marriages having a lower divorce rate than first marriages, this statement is <u>false</u>.
<h3>How do first marriages compare to second marriages?</h3>
According to statistics on marriage in the United States, second marriages have a higher divorce rate than first marriages.
While the data varies, over 60% of second marriages seem to end in divorce compared to around 50% for first marriages.
Find out more on divorce at brainly.com/question/7138705.