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zaharov [31]
3 years ago
10

How do scientists study and measure the four layers of earth?

Social Studies
2 answers:
yuradex [85]3 years ago
7 0
Scientist use all sources like geologists and astronomy scientist. They use them one how exact old is Earth and geologists use the tree trunk How old the  tree is there could be the eldest tree and the smallest.
Jet001 [13]3 years ago
5 0
Scientists<span> use waves to </span>study<span> the different </span>layers of the earth<span>. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the </span>earth's layers<span>.</span>
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