Which layer of earth is the densest and why is that so?

The densest layer of Earth is the inner core.

Explanation:

The inner core of the Earth, the innermost and warmest part according to seismological studies, is a mainly solid sphere about 1,216 kilometers in radius, or 70% of that of the Moon. It occupies 17% of its volume and represents around 33% of its mass.

It is thought to be an alloy of iron and nickel, and could have a temperature similar to that of the Sun's surface (about 5505 °C).

The existence of an inner core, differentiated from the liquid outer nucleus, was discovered in 1936 by the seismologist Inge Lehmann using observations from seismic waves generated by earthquakes.

woman's reproductive rights, gay rights, divorce, basically anything with people who aren't "holy"

explanation:

answer is  

loa ≅ lma

to prove that the triangles are congruent using the aas congruence