Which of these forms when air moves in the directions shown by the arrows in the diagram?

What did the first language sound like

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic