What are the level surfaces of this coordinate system? in what types of curves do the level surfaces intersect pairwise?

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

hope this any more questions i am here plz mark brainliest

a- all cells come from pre-existing cells