where do new sections of crust come from during seafloor spreading?

Answers

Answer 1

Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor. Eventually, the crust cracks.


Related Questions

(Q005) Identify the true statement. a. Magma is the term for very hot rock that is molten; when it cools and hardens, it's called lava. b. Igneous rocks form when pre-existing rocks undergo changes in response to heat and pressure. c. Hot, molten rock that cools and hardens produces metamorphic rocks. d. Sedimentary rocks form when pre-existing rock grains are cemented together.

Answers

Answer:

d. Sedimentary rocks form when pre-existing rock grains are cemented together.

Explanation:

Sedimentary rocks are formed from the erosion and deposition of preexisting rocks that are accumulated on the surface of the earth. If these rocks like igneous are buried deep they get compacted and form sedimentary rocks.

(Q020) Diamonds a. are brought from the mantle to the surface in magma that hardens into kimberlite. b. are found in carrot-shaped structures called pegmatites. c. of industrial quality (non-gem quality) have no use and are usually discarded. d. are exceedingly rare, which is why their price is so high.

Answers

Answer:

A. are brought from the mantle to the surface in magma that hardens into kimberlite

Explanation:

Diamonds are brought to the surface from the mantle in a magma that is known as the kimberlite. This kimberlites is rich in gases and it is an igneous rock that has the following minerals,olivine, phlogophite, serpentine etc.

The origination of diamonds in the mantle happens as carbon transformation occurs due to heat and pressure occurs. The kimberlite pipes and what brings the diamonds to the surface

What is the capital of the starred country on this map of Eastern Asia?

A. Seoul
B. Beijing
C. Taipei
D. Ulaan Bator

Answers

Answer:Seoul (A)

Explanation:The country the star is on is South Korea and South Korea's capital is Seoul.

That is South Korea, and the capital of it is Seoul.

See the map for further reference!

Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.

Which topographical region is known for dry climates, and cold night and warm days?
A . Coastal
B . Both Coastal and Mountains
C . Dry Aird
D . Mountains

Answers

I thinks it’s A

Hope this helps

The coastal region is known for dry climates, cold nights and warm days. Thus, option 'A' (Coastal) is the correct option.

What is coastal climate?

The Coastal Plain has a pleasant climate with warm summers and cool, rarely freezing winters. Seasonal high precipitation, especially around the coast. Although highs in the mid-90s are not uncommon during the dog days of summer, the average yearly high temperature is roughly 77 degrees.

Although the Coastal Plain regularly receives below-freezing temperatures, year-round averages are in the 50s. Coastal regions are already under pressure from human activity, pollution, invasive species, and storms. Climate change threatens these places. Sea level rise may erode, inundate, and destroy coastal habitats and wetlands.

Oceans that are warmer and more acidic are likely to disturb marine and coastal ecosystems. The Coast Ranges' climate is characterized by moderate, rainy winters in the north and cold, dry summers.

Therefore, option 'A' (Coastal) is the correct option.

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What protein is made that weakens the nucleus membrane

Answers

The answer is lamina
A protein that weakens the nucleus membrane is lamina

Hope this helps..

after logging occurs who often moves onto the land

Answers

soil erosion and coastal flooding.

what does the clear plastic covering used in your lab set up ?

Answers

Answer:

Explanation:

Polyethylene

Polyethylene or polythene is the most abundant manufactured plastic material. Polyethylene is generally available as thin transparent sheets which are used for making packings for solid test sample powders and other containers such as bottles.

With a few exceptions, individual cells cannot be seen with the naked eye, so scientists must instead use microscopes (micro- = “small”; -scope = “to look at”) to study them. A microscope is an instrument that magnifies objects otherwise too small to be seen, producing an image in which the object appears larger.

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What Urbanization in Sub-Saharan Africa is _____.

decreasing
of little importance
increasing
stabilizing
does the image of a “ferretlike face” suggest about Mr. Keetch?

Answers

Answer:

Increasing.

Explanation:

Urbanization in Sub-Saharan Africa is increasing due to migration from rural areas, but most of it will occur due to natural increases in the urban population as well as the changing of rural areas into urban areas. due to increase in urban population more land is required to settle them so for this purpose different villages are changed into urban areas in order to settle the population.

The Most significant Weakness and Strength For the British Army and The American Army during the Revolutionary war

Answers

Answer:

Explanation:

What were the major strengths and weaknesses of the American Continental Army?

While strengths were hard to find, their weaknesses were obvious. A major weakness for the Continental Army was manpower; they were always short of qualified and capable men. General George Washington routinely had no more than 20,000 troops at one time and place.

British Strengths

They had more than 42,000 troops at all times. They were well trained in European military strategies. They excelled in battle fighting against large troops on open ground. The British soldiers had more experience in firing artillery.

What Disadvantages Did the British Army Face in the Revolutionary War? One major disadvantage or weakness of the British army was that it was fighting in a distant land. Great Britain had to ship soldiers and supplies across the Atlantic, which was very costly, in order to fight the Revolutionary War.

Answer:

Hope this helps

Explanation:

American: Not alot of soliders/supplies

British: Thought they could win dont know gurrelia strats and sow moblization.

Describe the chemical weathering process of carbonation.

Answers

https://study.com/academy/lesson/what-is-chemical-weathering-definition-process-examples.html

Carbonation is another type of chemical weathering. Carbonation is the mixing of water with carbon dioxide to make carbonic acid. This type of weathering is important in the formation of caves. Dissolved carbon dioxide in rainwater or in moist air forms carbonic acid, and this acid reacts with minerals in rocks.
Carbonation

Carbonation is another type of chemical weathering. Carbonation is the mixing of water with carbon dioxide to make carbonic acid. This type of weathering is important in the formation of caves. Dissolved carbon dioxide in rainwater or in moist air forms carbonic acid, and this acid reacts with minerals in rocks.

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how did life on earth begin ?​

Answers

Answer: read genesis 1 1-7

Explanation:

Answer:

Earth formed about 4.54 billion (4.54×10^9) years ago through accretion from the solar nebula. The first life forms appeared between 2.8 and 2.5 billion years ago

scientist who developed a theory of how the universe formed. what is the name of this theory?

Answers

Answer:

Big bang theory?

Explanation:

Just guessing from my gut

Question 1 (1 point)
How did the peasants benefit from the decline of feudalism?
оа
b
They started to go to school
Made them extre:rely wealthy
They got higher wages
None of the above
с
d

Answers

Answer:

They started to go to school

Made them extre:rely wealthy

They got higher wages

None of the above

Khó khăn lớn nhất của miền nam trung bộ và nam bộ về khí hậu là

Answers

Answer:

mùa khô kéo dài

Explanation:

Which is the only state from which water runs in three directions?

Answers

Wyoming is the only state from which water runs in three directions

how long does it take for sedimentary rocks to form

Answers

From thousands to millions of years

Which statement is FALSE?Question 55 options: Ocean water is toxic to humans in large doses. Each region around the world faces unique water challenges. Snowmelt from the Sierra Nevada Mountain could increase as a result of climate change. Up to 75% of the human body consists of water. Nearly 80% of freshwater on the planet is trapped in ice caps at the poles and on glaciers.

Answers

Answer:

Nearly 80% of freshwater on the planet is trapped in ice caps at the poles and on glaciers.

Nearly 80% of freshwater on the planet is trapped in ice caps at the poles and on glaciers are the statement was the false. Thus, option (d) is correct.

What is planet?

The term “planet” refers to a large celestial body that orbits around the sun, but the sun is a fixed point in place. The planets are different sizes, as smaller planets are Earth, Mercury, Mars, and Venus. The larger gas giant planets are Jupiter, Uranus, Neptune, and Saturn.

According to the planet, was the fresh in the water are the nearly in the 80% was the wrong are the glaciers. The freshwater on the planet are the rarely in the trapped in ice caps. There was the statement was the false. There was the main in the focuses are the trapped are the glaciers.

As a result, the nearly 80% of freshwater on the planet is trapped in ice caps at the poles and on glaciers are, the statement was the false. Therefore, option (d) is correct.

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. Which of the following South American cities is the most developed?
1. Quito
2. Bogotá
3. Asunción
4. Buenos Aires

Answers

Bruno’s aires is definite

Find the length of the midsegment based on the diagram below

Answers

Answer:

42

Explanation:

so like the 1 part of the triangle 1 and so the bottom of the triangle has to be the same. And the height is 9.  

Answer:

C. 21

Explanation

In this triangle, 4n + 9 is the midsegment.

According to the Midsegment of a Triangle theorem, 4n + 9 is equal to half of 14n.

14n/2 = 7n

7n = 4n +9

-4n     -4n

3n = 9

/3     /3

n = 3

4(3) + 9 = 21

Therefore the answer is C

What is the longitude of station X when it is 9.00am while in Nairobi at longitude 37 degree the time is 12.00 noon? ​

Answers

Answer:

The answer would be 90° West. How? Let me explain. * The station A is at 60° West with local time 6:30 PM. * Station B has local time 4:30 PM.

Which of the following situations is an example of external migration?
A. moving from Canada to the United States
B. moving from California to Florida
C. moving to a town a few miles away
D. moving to a new house down the street
Please select the best answer from the choices provided
А
B

Answers

The answer is option A. (moving from canada to the united states )

Help PLEASE

Ethnic and universalizing religions have different understandings of relationships between humans and nature.
What is the term for a set of religious beliefs involving the origin of the universe and the environment?
cosmogony
O agnosticism
O syncretism
denomination
O toponym

Answers

Answer:

cosmogony

Explanation:

Cosmogony is a set of religious beliefs concerning the origin of the universe. A variety of events in physical environment are more likely to be incorporated into the principles of an ethnic religion unlike universalizing religion. ... Many holy places are not related to any particular physical environment.

Which events most likely happened during the formation of Earth's layers

Answers

Answer:

The heaviest elements settles in Earth's center

Explanation:

what is the longest river in europe and russia’s most important waterway?

Answers

Answer:

Volga

Explanation:

The Volga is the longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Caspian Sea. The Volga has a length of 3,531 km (2,194 mi), and a catchment area of 1,360,000 km2 (530,000 sq mi). It is also Europe's largest river in terms of discharge and of drainage basin. It is widely regarded as the national river of Russia. The old Russian state, the Rus' Khaganate, arose along the Volga between the late-8th and mid-9th centuries AD.Historically, the river served as an important meeting place of various Eurasian civilizations. The river flows in Russia through forests, forest steppes and steppes. Four of the ten largest cities of Russia, including the nation's capital, Moscow, are located in the Volga's drainage basin.

what is magnitude
what is latitude ​

Answers

Explanation:

In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface. Latitude is an angle (defined below) which ranges from 0° at the Equator to 90° (North or South) at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth. On its own, the term latitude should be taken to be the geodetic latitude as defined below. Briefly, geodetic latitude at a point is the angle formed by the vector perpendicular (or normal) to the ellipsoidal surface from that point, and the equatorial plane. Also defined are six auxiliary latitudes that are used in special applications.

Which of the following planets in the Solar System takes shortest revolution?

Answers

Answer Jupiter as it is around 10 hours 9hrs 55 do be exact hope it helps

Explanation:

Answer:
Jupiter has the shortest, and Venus has the longest

Carl Linnaeus developed which of the following?


- the first system to differentiate between plants and animals

- the taxonomic system that underlies most major modern systems

- the most recent classification system to be adopted in the last century

- the first scientific professional research group to work on an international taxonomy

Answers

I believe the correct answer is B! The taxonomic system that underlies most major modern systems...

Answer:

B, the taxonomic system that underlies most major modern systems

Explanation:

What is iplication location,shape and size of Etiopia and the Horn on physical environment,socioeconomic and political aspect

Answers

Answer:

The summary of the given question is provided below.

Explanation:

The Ethiopian mountains are geographically formed as well as the temperature throughout the bottoms is moderate as well as comfortable mostly on plain valleys.Ethiopia, which would be headquartered throughout the African continent, borders on East Africa as well as Somali, does indeed have a surrounded plain around 3000 meters high which separates the plate obliquely between the vast river valleys.

what is the only central american country without a caribbean coastline

Answers

Answer:

El Salvador

Explanation:

sự tan băng ở châu Nam Cực có ảnh hưởng tới con người như thế nào ?

Answers

Answer:

Explanation:

Mực nước biển dâng cao, nhiều lục địa lớn nhất dần dần bị nhấn chìm, hiện tượng tan băng còn giải phóng nhiều loại virus cổ đại nguy hiểm, các hoạt động khai thác trên biển của con người gặp khó khăn

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