Agroup of scientists observe a group of college students over 4 years to determine which of their characteristics leads to weight gain. this study is an example of a retrospective study. an experimental study. a prospective study. a case-control study.

b

Explanation:

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taking a bath requires the most water out of the given options because it takes a significant amount of water in order to fill a bathtub.

the answer is : the nut cases won't quit battling and their recurrence of flights will going to continue as before despite the fact that the battles are less hazardous now because of their bills have all of a sudden been blunted.   in the falcon dove diversion, two creatures will drive towards one another to crush one another, among the two one will win and other will swerve. in this way, clearly, the battle will be dependably there between two creatures for the assets or mate.