How can scientists learn about the mantle if they cannot study it directly?

Answers

Answer 1
So by looking at the seismic waves from earthquakes the scientist learned about the crust and the mantle but they also learned about the outer and inner core. To do this you have to look at a different kind of waves, the S (secondary waves) waves that also get released by an earthquake.

Related Questions

Which characteristic of bacteria makes them efficient transgenic organisms to produce insulin or other medicines?

A.They tolerate a wide range of environments.
B.They reproduce extremely quickly.
C.They have a short life expectancy.
D.They readily accept new genetic material.

Answers

The characteristic of bacteria that makes them efficient transgenic organisms to produce insulin or other medicines is they readily accept new genetic material.

What do you mean by Transgenic organisms?

Transgenic organisms may be defined as an organism whose genome has been modified by the insertion of one or more foreign (non-self) DNA sequences from another species via artificial means.

A Plasmid is a circular DNA that assists in the insertion of foreign DNA sequences into the bacterial cell.

Therefore, the characteristic of bacteria that makes them efficient transgenic organisms to produce insulin or other medicines is they readily accept new genetic material.

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Which are two states in the
us that have faults that don't
follow plate boundaries?
a. maine and florida
b. south carolina and missouri
c. california and texas
d. ohio and minnesota

Answers

Answer: a. maine and florida

Explanation:

Explain Natural Selection

Answers

the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.

Answer:

Those who adapt, survive. Those who don't adapt, die off. Offspring with healthy mutations, (evolution), outlive their siblings who slowly die off in ways from the mundane to the horrifying. They have children who then repeat this process. It is a dog-eat-dog world.

Explanation:

don't spam!! complete answe= Brainliest answer​

Answers

Answer:

1. Disc throw

2. Car and bike stunts

3. Sneezing

4. Th

rowing a basketball in the basket

5. Archery

Explanation:

Projectile motion is the motion of an object in two dimensions. This means that if an object moves in both the horizontal and vertical directions at the same time, it is said to be exhibiting a projectile motion. In simple words, if an object tends to follow a curved or parabolic path of motion, projectile motion is said to be existing.

(2) Over-Reproduction: How could making too many polar bears cause competition between the different polar bears types?​

Answers

the polar bears are going to fight for the different resources that will become limited in their environment

Is it true that bacteria and viruses are a type of disease?​

Answers

Answer:

yes

Explanation:

There are many bacteria and viruses that are harmful and can cause diseases but there are some bacteria that are helpful

Hope it helps! Mark it as brainiest please

Answer:

The simplest I can put it is, they are not diseases, but can cause diseases. Let's say I got the cold. I got that cold because I had the virus that gives me the cold, so that is why I have the cold. Bacteria is often helpful over harmful, so bacteria can only cause viruses but it not fully classified as a disease.



Which human body part is the epidermis of a leaf similar to?
1 lungs
2 skin
3 blood vessels
4 heart

Answers

Answer:

skin

Explanation:

skin skin skin skin skin skin

What is budding, cutting and grafting and how are they used in Agriscience

(LEGIT QUESTION DO NOT DELETE Y'ALL DONT HAVE AN AGRISCIENCE OPTION)

Answers

Answer:

Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant.

Explanation:

Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant. In grafting, the upper part (scion) of one plant grows on the root system (rootstock) of another plant. In the budding process, a bud is taken from one plant and grown on another.

Answer :Grafting and Budding are used so that a two plants can grow together

Explanation:

Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant. In grafting, the upper part (scion) of one plant grows on the root system (rootstock) of another plant. In the budding process, a bud is taken from one plant and grown on another.

What element is group 5 period 7

Answers

Group 5 contains vanadium (V), niobium (Nb), tantalum (Ta) and dubnium (Db). This group lies in the d-block of the periodic table. The group itself has not acquired a trivial name; it belongs to the broader grouping of the transition metals.

The element in group 5, period 7 is Nihonium (Nh). It has the atomic number 113.

What is Nihonium?

Nihonium (Nh) is a chemical element with the symbol Nh and atomic number 113. It is a synthetic element and was first synthesized in 2003 by a team of scientists at the RIKEN institute in Japan. Nihonium is a member of the group 5 elements, also known as the Nitrogen group, and is located in the 7th period of the periodic table.

It is a highly unstable element and has only been produced in very small quantities for scientific research. Due to its short half-life, it does not occur naturally on Earth. It is also known as Ununtrium.

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What are the starting compounds in the process of cellular respiration?

Answers

Answer:

Sugar and oxygen

Explanation:

The chemical equation for cellular respiration is: C6H12O6+602 yields 6CO2+6H2O+Energy (Sugar plus oxygen yields carbon dioxide plus water plus energy). Not to be confused with photosynthesis, which is the exact opposite (Energy+6H2O+6CO2 yields C6H12O6+6O2) (Energy plus water plus carbon dioxide yields sugar plus oxygen).

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What is the order of the relationships Jane saw at the farm ?

Answers

Answer:

Parasitism, competition, and finally mutualism

Explanation:

Really hope this helps!!

What are ways that a young plant differs from a parent plant

Answers

Answer:

their size

Explanation:

The most distinct difference between a baby plant and an adult plant is their size. They look very similar but baby plants are much smaller, like a miniature version.

Why are fuel cells better for the environment than fossil
fuels?

Answers

Answer:

option a

Explanation:

because When hydrogen is used to power a fuel cell, the only byproducts are water and heat—no pollutants or greenhouse gases are produced.

Write the systematic (iupac) names for the amines. The names should have the format alkanamine

Answers

The systematic names for the amines following the format alkanamine is :   4-Methyl-2-hexanamine

What is Systematic ( IUPAC ) name ?

IUPAC name is the standard way of naming organic compounds in chemistry following the chemistry rules as setout by IUPAC. The systematic names for the amines as attached below is 4-Methyl-2-hexanamine.

Hence we can conclude that The systematic names for the amines following the format alkanamine is :  4-Methyl-2-hexanamine.

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The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct?


Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.

Gamma rays have higher energy than microwaves because gamma rays have lower frequencies.

Infrared light has lower energy than X-rays because infrared light has shorter wavelengths.

Infrared light has lower energy than X-rays because infrared light has higher frequencies.

Answers

Answer:

The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct? X-rays have lower energy than gamma rays because X-rays have higher frequencies.

The answer is A, or Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.

Pepsin, a digestive enzyme that degrades proteins in the stomach, is synthesized as pepsinogen and converted to active pepsin in the stomach by the re

Answers

Digestive enzymes help to break down food in its simplest form. Pepsin is a digestive enzyme which leads to the degradation of proteins in the stomach. It is produced as pepsinogen and converted to active pepsin in the stomach by the removal of several amino acids.

What is pepsin?

Pepsin is a digestive enzyme which is present mainly in the gastric juice in stomach and helps to breakdown protein into peptides.

This pepsin is present in the stomach in the form of inactive pepsinogen. This pepsinogen gets active in the stomach by the action of hydrochloric acid.

Pepsinogen gets active and forms pepsin.

Thus, it can be concluded that the digestive enzyme pepsin degrades protein in stomach and is synthesized as pepsinogen and gets converted into active pepsin in stomach by removal of several amino acids.

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2. 40% of the students on a field trip love the museum. If there are 20 students on the field trip, how many love the
museum?
8. Maya spent 40% of her savings to pay for a bicycle that cost her $85.
How much money was in her savings to begin with?
b. How much money does she have left in her savings after buying the bicycle?
a.

Answers

Answer:

2.  8 students love the museum

8. $212.5

she will have $127.5 left

Which energy conversion occurs during the operation of a voltaic cell.

Answers

Chemical energy is spontaneously converted to electrical energy.

Sue is visiting a natural history museum. She reads a sign for a dinosaur fossil that states that the fossil is from 78 million years ago.

What dating method did scientists use to determine the age of this fossil?

Answers

Answer:

it is absulute dating

Explanation:

How are mitosis and meiosis similar?
A.) They both produce new cells.
B.) They both reduce the chromosome number.
C.) They both produce reproductive cells.
D.) They both make new cell walls.

Answers

Answer:

Explanation:

They both produce new cells

Explanation:

Mitosis and meiosis both represent cell division that occur in humans and other animals. These cell division processes share many aspects, including the production of new cells and replication of genetic material.

Answer:

They both reduce the chromosome number.

Explanation:

Modified organisms may contaminate the natural, wild populations.

Which genetic technique is the statement describing an ethical issue of?

A. cloning
B. stem cell research
C. transgenic organisms
D. gene therapy

Answers

The genetic technique in the above statement describes an ethical issue of: C. transgenic organisms.

What is a transgenic organism?

A transgenic organism can be defined as a type of organism which has been modified with genetic materials obtained from other species of organisms.

Generally, transgenic organisms are typically used in the following areas:

Agriculture growth.Biotechnology.

In conclusion, we can infer and logically deduce that the modification of organisms through the use of transgenic organisms may contaminate the natural, wild populations.

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Plum Island is divided into two diverse areas. (A) What are the differences between the two sides? What are the relative fractional sizes of the sides. (B) During a storm what are the differences in effect on the flora and base of the island?

Answers

Plum Island is divided into two different areas, the differences between the two sides are few, but one was human activity and the other was not.

During a storm, what are the differences in effect on the flora and island base?

On the one hand, being more preserved than the other, soil erosion will be lower on the side with greater vegetation, and the area where there was human activity suffers more from strong winds and rains.

With this information, we can conclude that Plum Island is divided into two different areas, the differences between the two sides are few, but one was human activity and the other was not.

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What is earth’s position in the hierarchy of organizations within the universe?

Answers

Answer:

Big Bang, the universe is still expanding. Slowly the planets get further away from each other. It's the third planet from the sun, some believed that the earth was in the center of the universe  and now we believe the sun is in the middle.Explanation:

How the respiratory membrane works. What cell types and what forces allow the diffusion of gases across the respiratory membrane?

Answers

Acc6ording to the question:

When we breath; there is air in and out though out from our lungs. How could it happen. Oxygen and carbon dioxide moves across the respiratory membrane. Normally the membrane separating air within the alveoli from the blood within pulmonary capillaries and consists of the alveolar wall, the capillary wall, and their basement membranes. Respiratory membrane is very thin, somehow its is approximate less than 0.5 mm.

Explain?

The respiratory membrane includes millions of alveoli with a surface area, the large respiratory surface area, combined with other factors, makes for efficient gas exchange to meet our metabolic needs.

Respiratory membrane allows gases to be exchanged between the pulmonary capillaries, or blood vessels, and the respiratory units of the lungs, which consist of bronchioles, alveolar ducts, atria and alveoli.

Since respiratory membrane is very thin,it consists of only two cells, one is the alveolar epithelial cell and the other is pulmonary capillary cell.Gas exchange occurs in the lungs between the air and our blood.

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Where in the atmosphere is ozone beneficial to organisms on Earth?
biosphere
troposphere
stratosphere

Answers

Ozone is beneficial to organisms on Earth in the stratosphere layer of the ozone. Thus, the correct option is C.

What do you mean by Ozone?

Ozone may be defined as a highly reactive gas comprised of three oxygen atoms.

Good ozone occurs naturally in the upper layer of the atmosphere known as the stratosphere.

Therefore, ozone is beneficial to organisms on Earth in the stratosphere layer of the ozone. Thus, the correct option is C.

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Answer:

stratosphere

Explanation:

While looking in a microscope, you see this same specimen, which is magnified 100X. Determine its type of cells and the level of biological organization. Give evidence used to make your determination.

Answers

The answer is Determinate 50x

Periodic inventory systems are used most commonly by companies that sell

Answers

Periodic inventory systems are used most commonly by companies that sell low-priced, high-volume merchandise.

What do you mean by Periodic inventory systems?

Periodic inventory systems may be defined as a strategy of inventory valuation in which a material count of inventory is executed at specific intervals.

Periodic inventory systems regularly updated their inventory balance to analyze their expenditure, profit, and loss.

Therefore, periodic inventory systems are used most commonly by companies that sell low-priced, high-volume merchandise.

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Can u answer the quest

Answers

Answer:

but I don't see a quest in this question

When temperature goes up in
water, dissolved oxygen goes
down. What type of relationship
is this between the amount of
dissolved oxygen in water and the
water's temperature?
A. an uninvolved relationship
B. an exponential relationship
C. an inverse relationship
D, a reverse relationship

Answers

Answer:

C) an inverse relationship

Explanation:

As temperatures rise, dissolved oxygen levels fall; and as temperatures fall, dissolved oxygen levels rise. This is called an inverse relationship.

Which of the following statements best describes why most animal fats are formed from saturated fatty acids?

A) The hydrocarbon chains of saturated fatty acids are straight so they can be tightly packed to store more energy in less space.

B) The hydrocarbon chains of saturated fat cannot pack together closely, which keeps the animal from becoming too large.

C) The hydrocarbon chains of saturated fatty acids allow fewer hydrogen atoms to bond, which makes the molecule stable for energy storage.

D) The hydrocarbon chains of saturated fatty acids have bends so they can be loosely packed to store more energy in less space.

Answers

B) The hydrocarbon chains of saturated fat cannot pack together closely, which keeps the animal from becoming too large.

good day, hope this helps ^^

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