Given 1.00 grams of each of the following radioisotopes, ca-37, u-238, p-32 and rn-222,which would have the least remaining original isotopes after 100 years? 1) ca-37 2) u-238 3) p-32 4) rn-222

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory