Answer:
The more dense the rocks get
Explanation:
The deeper we go towards the center of the planet we will find more and more dense rocks. This is because of the force of gravity of the planet. That theory was devised by Sir Isaac Newton and it still holds true to this day. Every layer has more density than the previous layer all the way to the core.
Layer B would 'be'(get it??) would be the oldest of the two because it came before layer D. The second part to the question I don't understand.
Answer:
the more severe the earthquake is the more people get in injured because of the dangers that can be cause are very destuctive
Explanation:
All of them Plays an equal and important role to support life on Earth..