Indirect evidence from Seismic Waves, and direct evidence from rock samples.
magma and the core
hot springs on the sea floor that pump out superheated water from inside earth.
It is of no concern to scientists - its just data. However, it is a concern to the human beings who are also scientists since their environment is getting fouled up.
Archaeologists. Astronomers. Biologists. Chemists. Computer Scientists. Earth Scientists. Educational psychologists.
Muslim scientists who studied the heavens perfected the Greek astrolabe. Sailors use this tool to study the stars and determine their location at sea. They used the astrolabe to measure the size and distance around the Earth. Based on the measurements they figured out Earth is round.
Any scientists interested in earth sciences: mineralogist and mining engineer.
Indirect evidence from Seismic Waves, and direct evidence from rock samples.
Scientists used detectors which determined the mantle existed. As well, scientists must hypothesize and theorize what cannot be readily seen, and make determinations based on the evidence that does exist.
Types of rocks are inside the Earth, so scientists study them.
by digging holes in the earth
round shape
So far Earth. They do have robots on Mars so they could be evidence.
Scientists say yes.
Fossils.
Scientists determined that the Earth has layers through studying how seismic waves travel. These seismic waves differed depending on how thick the layer was.
They do not have evidence. In fact most pf things are not even true. The only thing they say they did was put a stick on the ground and with a shockwave they knew what was inside the earth. My opinion is that the core is not what scientists say it is. Due to the fact that we know more about the moon than our own planet.
Scientists find out information on the core by using special tools to dig out samples from deep inside the earth. Special instruments "look inside" parts of the earth we cannot see.
Determine the age of the layers of rocks