CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Knowing how the waves behave as they move through different materials enables us to learn about the layers that make up the Earth. Seismic waves tell us that the Earth’s interior consists of a series of concentric shells, with a thin outer crust, a mantle, a liquid outer core, and a solid inner core.

Detailed explanation-2: -Seismic waves propogate outwards from an earthquake in all directions. Seismologists use the recordings of the ground motion caused by these waves to explore the Earth’s deep interior. We do not see shear (S) waves passing through the outer core.

Detailed explanation-3: -So scientists rely on seismic waves-shock waves generated by earthquakes and explosions that travel through Earth and across its surface-to reveal the structure of the interior of the planet. Thousands of earthquakes occur every year, and each one provides a fleeting glimpse of the Earth’s interior.