What evidence indicates that the cell must be a plant cell

How do you date a sample of rock that you suspect as being one of the earliest on earth

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Iwill make you brainliest pleeze answer this fast i have to turn it in really soon brainliest promise easy question 6th grade ! a weather map shows a high pressure system with circles around it. what does this mean? a) an occluded front b) areas of equal altitude c) areas of equal pressure d) a stationary front