Answer:
Scientists use waves to study the different layers of the earth. 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 earth's layers.
Seismic waves are recorded by a machine called a seismograph, which tells us about the strength and speed of the seismic waves. ... Seismic waves travel at different speeds when they pass through different types of material, so by studying seismograms, scientists can learn a lot about Earth's internal structure.
Explanation:
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The heaviest elements settled in the Earth's center during the formation of Earth's lithosphere
<u>Explanation:</u>
Earth's lithosphere comprises the crust and the uppermost mantle, which form the strong and rigid external layer of the Earth.
The Earth, on the other hand, begins with a core of iron and radioactive materials such as uranium and plutonium, which deliver energy in the form of heat, within a process known as nuclear fission. It passed by a fusion stage - a "liquid-pasty" state - which provided that, due to gravity, the more solid materials dropped towards the center, while the smaller ones floated towards the crust, a process called planetary differentiation.
පොටෝ පළිබෝධ නාශක ප්රමාණය ආරම්භ කිරීමට කටයුතු කිරීම ගැන ඉතාමත් සතුටට පත් වෙමි මම මේ ගැන පොඩ්ඩක් හොයලා බලලා කියන්නම්
Answer:
c. The oldest rocks are along a fault line
Explanation:
- As geology, the fault lines are the lines of displacement of rocks where the volume of rocks gets significantly displaced such as the subduction zones. Where the younger rocks are found at the surfaces and the older rocks are formed at the depths of the earth.
- They are also formed where the magma rise and they are of various types as the normal, reverse and the slip strike faults.
Answer:
An oxbow lake starts out as a curve, or meander, in a river. A lake forms as the river finds a different, shorter, course. The meander becomes an oxbow lake along the side of the river. Oxbow lakes usually form in flat, low-lying plains close to where the river empties into another body of water.
Explanation:
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