Which of the following is the best explanation why is the Earth's inner core solid? Question 2 options:

The particles are no longer moving as fast because it has cooled to a solid.

Because the inner core is the same temperature as the sun.

Because it's made of a mixture of iron and nickel which are only found in a solid state.

The pressure from the other layers of the Earth cause the inner core to be solid.

How do temperature and salinity affect deepwater currents? question 15 options: 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.