How many calories are required to boil 75 grams of water not in sig figs

What is the main reason why some developing countries fear the increase the free trade policies around the world?

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.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?