What does it mean to have a high ph (which numbers), low ph? which is acidic? which is basic? which has more h ions? which has less h ions?

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

How does friction with the atmosphere affect the speed of an artificial satellite

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