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The main reason behind primary compression is expulsion of

AWater

BAir

CBoth air and water

DSoil

Answer:

B. Air


Related Questions:

Which of the following methods of structural analysis is a compatibility method?

Directions: In the question below is a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, then consider the two conclusions together and decide which of them logically follows beyond a reasonable doubt from the information given in the statement.

Statement:  Only science students are permitted to attend the conference, other than science students no one is permitted.

Conclusions: 

I. All students present at the conference are science students.

II. Those students who do not have a science background are not allowed in the conference.

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