: a loose pullover or jacket without a collar and usually with long sleeves. See words that rhyme with sweatshirt Spanish Central: Translation of sweatshirt Nglish: Translation of sweatshirt for Spanish speakers.
Demography (from prefix demo- from Ancient Greek Î´á¿Î¼Î¿Ï dÄmos meaning the people, and -graphy from Î³ÏÎ¬ÏÏ graphÅ, implies writing, description or measurement) is the statistical study of populations, especially human beings.
Biostratigraphy is the branch of stratigraphy which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them.ossil assemblages were traditionally used to designate the duration of periods. Since a large change in fauna was required to make early stragtigraphers create a new period, most of the periods we recognise today are terminated by a major extinction event or faunal turnover.