How do scientists use seismic waves to determine the interior structure of Earth?

2 answers:

8 0

There are two kinds of seismic waves: p waves and s waves. P waves are capable of passing through both solid and liquid, and travels faster. S waves are slower, and can't pass through liquid. The speed of these waves are variable to the substance they pass through. Scientists are able to determine the interior surfaces of the Earth by measuring the seismic waves that an earthquake emits. We know that the outer core is liquid because s waves can't penetrate them, and we also know that the inner core is solid because there are some p waves that reflect off the boundary between the inner and the outer core. By measuring the time a seismic wave travels, it gives an impression of how the Earth is composed. When there is a change in the velocity of the wave, then the wave is passing through a different substance.

Rom4ik [11]2 years ago

4 0

<span>Much of our understanding of the basic structure and composition of Earth and the other planets in our solar system is not strenuously debated. We can infer a surprising amount of information from the size, mass and moment of inertia of the planets, all of which can be determined from routine astronomical observations. Measurements of surface chemical composition, either by direct sampling (as has been done on Earth, the moon, and Mars) or through spectroscopic observations, can be used to estimate elemental abundances and the degree of chemical differentiation that occurred as the planets condensed from the solar nebula. Remote observations of the gravitational field can be used to understand how a planet's mass is distributed, whereas the strength and shape of the magnetic field provides some constraint on the structure of a metallic core. The specifics of structure and composition, however, are much more debatable. And it is these details that tell us a much more extensive and ultimately more interesting story about the internal dynamics of the planets and their evolution. As a result, trying to determine them is frontier research in almost all fields of earth and planetary science.
</span>
hope that helped *smiles*

You might be interested in

2. When people eat foods high in proteins, such as meat, eggs, and cheese, the body breaks down the

Alchen [17]

Answer:

A. amino acids

Explanation:

Protein in our diets comes from both animal and vegetable sources. ... The digestive system breaks all proteins down into their amino acids so that they can enter the bloodstream. Cells then use the amino acids as building blocks to build enzymes and structural proteins.

hope this helps

8 0

2 years ago

Another thermophile, Thermus aquaticus, was isolated from a hot spring in Yellowstone National Park. It is the source of the enz

fredd [130]

It can withstand high heat and still add nucleotides which is used in the PCR.

7 0

2 years ago

What form of matter is made from only one type of atom?

lakkis [162]

Elements are made from one type of matter.

8 0

2 years ago

Read 2 more answers

What happens if food items with excessive moisture are placed directly into hot shortening?

Olenka [21]

The excess moisture ( water) in the food items boils up immediately and busts both shortening and water around.

<h3>Reaction between hot shortening and water</h3>

Shortening are known to be fats at room temperature and are usually used in the baking of cakes and bread.

When placed in the temperature that is high, it melts to become liquid.

When you pour a food item that contains excess moisture on hot shortening, the water comes in contact with a higher temperature than the shortening's boiling temperature, so the water starts boiling immediately, and busts both shortening and water around.

Learn more about moisture here:

brainly.com/question/10398867

5 0

1 year ago

It is mentioned that energy utilized for exercises comes from the breakdown of ATP (adenosine triphosphate). Please explain the

harkovskaia [24]

Answer & explanation:

Adenosine triphosphate (ATP) is a molecule made up of <u>one adenosine molecule</u> and <u>three phosphate radicals</u> (P) capable of storing small amounts of energy (from the breakdown of food) in their chemical bonds, acting as a temporary energy container.

ATP is directly linked to cell metabolic processes such as cellular respiration and photosynthesis. When cells need energy, for the sodium-potassium pump, for example, the ATP molecule breaks down.

This breakdown is made by hydrolysis (ATP breaks using water), so the bond between the phosphate group 2 and the phosphate group 3 breaks down, leaving one Adenosine diphosphate (ADP) molecule, which has two phosphate radicals.

At the end of the process the energy that kept the phosphate groups bound is released and used in processes such as <u>stretching and shortening of muscle fibers</u>, nerve impulses and hormonal regulation. These processes utilize the active energy released by ATP hydrolysis.

ATP - ADP conversion is the fundamental way to get energy because the cell cannot use the glucose molecule directly.

7 0

2 years ago