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ivolga24 [154]
3 years ago
5

Which layer forms the largest portion of Earth?

Biology
1 answer:
Arturiano [62]3 years ago
3 0
The mantle is the largest layer
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What kind of diagonosis is neuroblastoma?​
koban [17]

Answer:

Neuroblastoma is a cancer that develops from immature nerve cells.

Explanation:

Neuroblastoma often spreads to the bone marrow (the soft inner parts of certain bones)

hope this helps

3 0
4 years ago
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Which of the following sources of electricity DOES NOT employ the use of turbines?
AleksandrR [38]
<h3>Answer:  A) Solar</h3>

=========================================================

Explanation:

The sources of wind, hydro, and fossil fuels all use a turbine. So we can rule out choices B,C, and D.

A turbine is basically a wheel that spins to generate motion energy into electrical energy. Think of it like one of those stationary bicycles and the bike powers up a nearby lamp (the faster you pedal, the brighter the bulb gets). Another example that's similar to a turbine would be those flashlights where you can rotate a crank to have the light come on (which is useful for when the batteries are completely dead). The windmill blades act as a giant turbine that the wind spins around. Hydroelectric turbines are spun by the falling water. Fossil fuels are burned to create very hot steam which then powers a turbine. Even nuclear power uses turbines as well. With fossil fuels and nuclear energy, the idea is to heat up a vat of water and then turn that intensely hot steam into electrical energy through a turbine.

With solar panels however, the electrical energy is converted through a process of sunlight interacting with the solar cells that <u>doesn't require a turbine</u>. This explains why you can use solar panels to power up devices such as phones or laptops without having any moving parts. All you need is  a flat set of solar panels.

There is a slight variation of solar power known as "concentrated solar power", aka "concentrated solar thermal", where solar panels are not used. Instead, a vast array of mirrors are set up to aim the suns rays at a very specific narrow area. Think of it like a magnifying glass to focus the suns rays. The place where the narrow beam hits has a very high temperature. This high temperature heats up water to turn to steam, and the process from here is effectively the same as fossil fuels or nuclear energy. So that means turbines are involved with concentrated solar power. I'm assuming your teacher is specifically referring to solar panels when they mentioned choice A.

3 0
3 years ago
Earth’s axis passes through the_____and South Poles. It takes Earth____hours to rotate once around its axis. Earth revolves once
Darya [45]

Answer:the first blank is north the second blank is 24 hours the third blank is 365 days

Explanation:h

3 0
3 years ago
If a disease is due to a completely dominant mutation, the DNA of individuals that hybridize both normal and disease probes in a
likoan [24]

Answer:

Exhibit the disease

Explanation:

A dominant trait is a trait that appears visible due to dominant genes in the individual.

If the disease is due to a completely dominant mutation then such a disease will be fully exhibited. However if the disease was caused by a completely recessive mutation then the disease won’t be fully exhibited.

4 0
3 years ago
create a scientific argument of one to two paragraphs that support or oppose the current flu vaccine recommendations.
OlgaM077 [116]

Answer:

Flu vaccinations are fundamental as they reduce the risk of flu illness by over 50%.

Explanation:

Flu vaccinations <u>reduce the risk of flu illness by over 50%</u>. This makes this process extremely important and fundamental for all human beings as they <u>not only protect the person who gets the vaccine, but it also contributes to the prevention of spreading to other people</u>, especially children and older adults who possess a greater risk of developing flu complications.

<u>The antibodies that are produced by the vaccine prevent the flu virus from attaching to a healthy cell</u>. However, if a person has not been vaccinated, <u>the virus will attack the healthy cells</u> because there is an absence of antibodies that prevent this process.

7 0
3 years ago
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