For life to flourish on earth, several changes occurred that affected the atmosphere, such as

1. evolution of cyanobacteria that produce o2.
2. volcanic outgassing to create a thicker atmosphere.
3. formation of an ozone layer to block harmful radiation.
4. all of the above.
5. only a and c.

Utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must available hint(s)utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must pump water back into their cells to counter its loss due to osmosisactively pump water back out of their cells to counter its inflow due to osmosissynthesize membranes that are impermeable to substances that upset osmotic balanceactively pump salt back out of their cells to counter its inflow due to osmosis

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

What instrument is used to measure liquid volume?