Rocks which become hard are said to be lithified? true or false

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Along what geographical feature are most of the oil producing regions located

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?