Question

initially people thought that the earth was in the centre of the universe and human beings the most important creation. what difference does it make to us to know that we are a small insignificant speck in this vast universe ?​

Answer 1

Explanation:

Seismic waves from large earthquakes pass throughout the Earth. These waves contain vital information about the internal structure of the Earth. ... Both P- and S-waves from earthquakes travel through the mantle, demonstrating that it is solid.