Answer: The different layers of the Earth are the crust, the mantle, and the core. The core is made up of a solid inner core and liquid outer core.
Answer: We need to study the Earth’s layers because the mechanisms in the inner layers facilitate the slow changes that occur on the Earth’s surface. Although these changes takes millions of years to shape the Earth, the tectonic activities that go along with these changes affect us very much.
Answer: The different layers of the Earth are the crust, the mantle, and the core. The core is made up of a solid inner core and liquid outer core.
Answer: We need to study the Earth’s layers because the mechanisms in the inner layers facilitate the slow changes that occur on the Earth’s surface. Although these changes takes millions of years to shape the Earth, the tectonic activities that go along with these changes affect us very much.
3. Answer: As seismic waves pass from the crust to the mantle, the velocity increases. If the velocity of waves changes, it means that the density of the media where they travel through are different, and thus proves a boundary.
4. Answer: The asthenosphere is the soft weak layer below the lithosphere. It has a temperature that facilitates a small amount of melting that gives it the capability to flow
3. Answer: As seismic waves pass from the crust to the mantle, the velocity increases. If the velocity of waves changes, it means that the density of the media where they travel through are different, and thus proves a boundary.
4. Answer: The asthenosphere is the soft weak layer below the lithosphere. It has a temperature that facilitates a small amount of melting that gives it the capability to flow
Answer: The shape of the continents seems like a jigsaw puzzle when put together. A Picture will formed and indicate that the continents were once together in the past.
