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The Earth's inner core can only be studied indirectly. Scientists use seismic waves generated by earthquakes to study the inner core's composition and characteristics, such as its solid state and iron-nickel composition.

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What layers can be only studied by indirect means?

The inner core, outer core, and the mantle.


What does indirect mean in a sentence?

Indirect means not direct. We got there by indirect means. The author used indirect characterization.


What is to the study of the earth as an X-ray machine is to the study of the human body?

The interior of the Earth can be studied by means of a seismometer.


Same effects of a thining ozone layer?

it mean if u litter on the earth its not good and the ozone layer layer get thiner and the sun will get closer to the earth and that mean nothing will happen wrong it means we will burn up into ashes and that means 2012


What is crust?

Crust is the hard outer surface of something, typically the earth or a baked food such as bread or pie. In geology, the Earth's crust is the outermost layer of the Earth's surface, consisting of a variety of rocks and minerals.


What makes up the interiors of the earth?

Earth is composed of four layers; each layer has unique components, and has a different size. The first layer of the Earth is the outermost one, the Crust. The crust, even though it is over thirty miles thick, is the thinnest layer and it is the only layer with mountains, ocean, and living organisms on it. It is the only layer that one can study directly. All of the other layers are out of our reach. A machine that has to ability to travel deep into the earth will have to be able to withstand extreme temperature, and will have to be able to dig through tremendously dense rocks. The earth is an exceptionally complicated element, and so the machine will have to be very complicated indeed! The temperature of the crust gradually rises as one goes deeper into the Earth. The Crust is composed of about 10-70 km thick (depending on where one is in the world.) of minerals and igneous, sedimentary, and metamorphic rock. The crust covers the entire globe. It is only the first layer of the Earth. The second layer of Earth is called the Mantle. This layer is the thickest and takes up over half the Earth in mass. The temperature of the Mantle gradually rises as one goes deeper into it. Because the Mantle is so large, the warmth of the top of it significantly differs from the bottom. This layer has rocks denser and hotter than of the Crust, because of its dept, and density. One must study the Mantle with indirect means. The Mantle Composed of about 2800 to 3200 km of dense rocks. The deeper one goes into the earth, the hotter it gets, and the more concentrated the weight becomes. The third layer, of the four layers of Earth, is called the Outer Core. A very incredible aspect of this layer is that it is completely liquid. The Outer Core has only been studied by indirect means. The Outer core is the second thickest layer, but still not even half the size of the Mantle. This layer is composed of about 2100 km thick of liquid iron and nickel. This Layer is 5000 degrees, in Celsius. The Inner Core is the only layer that is completely liquid. No man has been within sixty miles of this layer. If a human were to stand up to a mile away from the Outer Core, he would quickly melt within a second. This is the second to last layer of Earth. The last layer, of the four layers of Earth, is The Inner Core. When a rock is hot enough, it becomes magnum (lava). But when rock is hot, but has such compression as the Inner Core, it is solid. The compression keeps it completely solid. It is believed that the Inner Core is composed of about 1400 km (in diameter) of solid iron and nickel. We study this by indirect means. No man has been within ninety miles of the Inner Core.


What does ozone layer means?

The ozone layer is a region of Earth's stratosphere that contains a high concentration of ozone (O3) molecules. It plays a critical role in absorbing the sun's harmful ultraviolet radiation, protecting life on Earth from its harmful effects.


Why do you have a telescope in space?

Putting the telescope in space means that it is above the earth's atmosphere, cloud layer and free of earth's light pollution.


Which word means making an indirect reference to something Prosper Allusion Literary Illuminate?

Allusion means making an indirect reference to something.


What core means and a figure of?

The center layer of the earth's crust, meaning it is the one in te very center between other thinner layers. I don't know what layer number the core is but I do know that it is the center of the earth's crust (possibly the fourth layer). B-EHS student


What does direct means in scientific way?

Not indirect.


What is the origin name of hydrosphere?

hydro mean water sphere mean ball it means the layer of the earth that is water