What causes sea floor to spread apart at mid ocean ridges?

Answers

Answer 1

Answer:

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.


Related Questions

The respiratory system controls __________, and the circulatory systems controls __________. (5 points)
antibodies; digestion
breathing; blood flow
muscles; bones
nerves; senses

Answers

Breathing; blood flow.

Answer:

respiratory- breathing

Circulatory- blood flow

Explanation:

hi… what is zoospor?​

Answers

Answer:

from google HAHA, just searched it there

what is an example of a question someone might ask to start a descriptive investigation?

Answers

Explanation:

where were you last night and what we're you wearing

factors that make an ecosystem stable

Answers

Explanation:

factores  físicos  son  la  luz  solar , el  suelo ,  el  agua ,  los  nutrimentos , la  temperatura , y   el  aire

An ecosystem is said to possess ecological stability (or equilibrium) if it is capable of returning to its equilibrium state after a perturbation (a capacity known as resilience) or does not experience unexpected large changes in its characteristics across time.

Which statement best accounts for the decline in bighorn sheep populations? 1. Predators of the sheep decreased in number. 2. Sheep ewes that have shorter, spiked horns increased in number. 3. Human activities directly and indirectly affected the sheep. 4. The sheep were listed as a "species of concern" by Glacier National Park.

Answers

Answer:

The statement which best accounts for the decline of the bighorn sheep population is - " Human activities directly and indirectly affected the sheep."

Explanation: Explaination of the following statements -

Predators of the sheep decreased in number.

Predation is rarely considered a major mortality factor (Wishart 1975, 1978). It is well known that bighorn sheep are preyed upon, but there is little information available on the effect(s) of predation on the populations of bighorn sheep. Numerous citations document the stalking and/or killing of bighorn sheep by a number of predators.

Thus , this statement is not correct.

Sheep ewes that have shorter, spiked horns increased in number -The larger, wild relative of the domesticated sheep is the bighorn sheep. Males are called "rams" and have long spiral horns, while females are called "ewes" with shorter, spike-like horns. With white areas on the muzzle, the back of the legs and around the rump, the coat is short, coarse and usually brown. The sheep will shed its hair once a year to reveal a new coat underneath.

Thus , the statement does not match with the decline of the bighorn sheep.

Human activities directly and indirectly affected the sheep. -: Disease transmission, human interference, overgrazing, and loss of habitat are often cited as factors responsible for decreases in the abundance and distribution of bighorn sheep. these all factors comes under the human activities which directly /indirectly results in the declination of the bighorn sheep.

Hence, this statement is correct .

The sheep were listed as a "species of concern" by Glacier National Park.  

Home to 400 to 600 bighorn sheep, Glacier National Park lists the animal as a "species of concern," that is, at risk of being endangered.  The research has also shown just how sheep-like bighorns could be. They're creatures of habit, that is.  Therefore , the national park indicated the species at risk , but were not responsible for their declination.

Hence, this statement is incorrect.

Therefore , the correct answer is 3 ( Human activities directly and indirectly affected the sheep.)

A nursing infant is able to obtain disease fighting antibodies, which are LARGE MOLECULES, from its mother's milk. These molecules probably ENTER the cells lining through the baby's digestive track via… * 2 points a. Osmosis b. Diffusion c. Endocytosis d. Exocytosis

Answers

Answer:

The correct answer is - option C. endocytosis.

Explanation:

Endocytosis is the transfer process of large molecules from the outside of the cells by internalizing them or engulfing them in vesicles, it is possible by invagination of the surface of the cell to form vesicles.

In an infant, the antibodies like large molecules from the mother to the baby are transferred through the Mother's milk which is entered in the baby's digestive tract via Endocytosis

Which occurs during both DNA replication and protein production?

RNA leaves the nucleus.
DNA leaves the nucleus.
RNA unzips.
DNA unzips.

Answers

Answer: RNA leaves the nucleus

Explanation: I did the assigment and got it right

1. RNA leaves the nucleus during both DNA replication and protein production.

What is DNA replication?

"DNA replication is the process by which the genome's DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome."

What are the main steps involved in DNA replication?

The main steps involved in DNA replication are as follows:

Replication Fork Formation.Primer Binding.Elongation.Termination.

What is protein production?

"Protein production is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus."

What are the main steps of protein production?

Protein production includes three steps:

Initiation. Elongation. Termination.

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Explain how xylem cells are adapted for their function.

Answers

Answer:

Xylem cells have no cytoplasm or end walls, meaning they form a tube through which water can pass freely to allow water transport. Lignin strengthens the cell walls, helping to support the plant.

Xylem vessel from plant stem- dead, hallow cell with strengthening rings. Carries water up stem.

Hydrogen bonds can be found between no other molecules except water.


Answers

Answer:

Without hydrogen bonds, water molecules would move faster more rapidly, with less input of heat energy, causing the temperature to increase more for each calorie of heat added.

Explanation: This would also greatly reduce the amount of heat energy needed for phase changes from ice to liquid, and from liquid to vapor.

Answer: Not really a question but....Two molecules of water can form a hydrogen bond between them that is to say oxygen-hydrogen bonding; the simplest case, when only two molecules are present, is called the water dimer and is often used as a model system.

(Environmental) Southern England What are the major concerns about soil erosion on arable land in Britain?

Answers

Answer:

Soil nutrient loss

Algae blooms

Pollution of water ways

Explanation:

Soil nutrient loss - a major concern as when soil erodes, this results in nutrient run off. Heavy rains can "wash away" essential nutrients within the soil therefore reducing the fertility of the land.

Algae blooms - when nutrients run off soil as a result of soil erosion they can leech into nearby fresh stream and even into salt water marine environments. This large increase of nutrients results in algae thriving and forming a layer across the top of the water. This reduces the oxygen and sunlight available to other marine plants and essentially suffocates plant and animal species.

Pollution of water ways - The sediment of soil that is eroded makes its way into fresh water ways can not only "bury" plant species and reduce biodiversity but it also reduces the water quality. It can introduce pathogens to the water from liverstock farming as well as introducing pesticides that may be harmful to wildlife.

~PLEASE HELP ME~
The warming of the atmosphere by the trapping of heat being radiated to space is called
a)condensation
b)evaporation
c)the greenhouse effect
d)radiation

Answers

Answer:

The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. Solar energy absorbed at Earth's surface is radiated back into the atmosphere as heat. As the heat makes its way through the atmosphere and back out to space, greenhouse gases absorb much of it.

The answer is c



Good luck

what is bees called?​

Answers

bees are classified as insects

why is a soda exploding/fizzing a physical change?

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Answer:The fizzing of soda is a physical change that involves the release of gaseous carbon dioxide. During fizzing of a soda, you can see bubbles of carbon dioxide in the soda rise to the top. A bottle of soda doesn't fizz when it is closed because the pressure is higher, and keeps the carbon dioxide dissolved in the liquid.

Explanation:

What do biogeochemical cycles represent?

Answers

The biogeochemical cycle of water, or the hydrological cycle describes the way that water (Hydrogen Dioxide or H 2 O) is circulated and recycled throughout Earth’s systems. All living organisms, without exception, need water to survive and grow, making it one of the most important substances on Earth.

hope that helps

Biogeochemical cycles represent the main system where the energy of the Sun is converted into the energy of chemical compounds by living beings and the products of their activity.

What is Biogeochemical cycle?

A biogeochemical cycle is defined as the path by which a chemical substance cycles through the biotic and abiotic compartments of the Earth where the biotic factor is the biosphere and the abiotic factors are the atmosphere, hydrosphere and lithosphere.

Nutrients cycle occur through organic components as well as abiotic components. In biosphere the term bio refers to biotic components while 'geo' refers to abiotic components. Therefore, nutrient cycles in nature are called biogeochemical cycles.

Thus, Biogeochemical cycles represent the main system where the energy of the Sun is converted into the energy of chemical compounds by living beings and the products of their activity.

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Read the following paragraph and fill in the gaps with words from the text box below. Each word may
be used once, more than once, or not at all.

Seeds can be spread by......... seed pods, wind, water or ............ The
dormant ........inside a seedcan survive extreme........... and lack
of ..........They can travel long distances before they.......

embryo/exploding/animals/germinat/ water/temperatures​

Answers

Answer:

exploding, animals, temperatures, water, germinate

Explanation:

Seeds can be spread by exploding seed pods, wind, water or animals. The dormant embryo inside a seed can survive extreme temperatures and lack of water. They can travel long distances before they germinate.

What types of substances tend to be alkaline?

Answers

Answer:

Bases, like cleaning supplies

Explanation:

in the metric system, do prefixes increase by a factor of 100?

Answers

Answer:

I believe that every prefix increases/decreases by 10.

Explanation:

For example

Kilo: 1,000

Hecta: 100

Deca: 10

Why label subject biology if this is a math question

A teacher pushed a 98 newton desk across a floor for a distance of 5 meters in 4 seconds what was his power

Answers

W=98(5)cos(0)
=490J
P=W/t
=490/4
=122.5W

During the light dependent reactions of photosynthesis which is not produced
A.Oxygen
B.ATP
C.NADPH
D. Glucose

*hurryyyyyyy*

Answers

Answer:

D. Glucose

Explanation:

Which statement is true about oxygen and nutrient levels of rivers? TIMED TEST

Your answer:

Fast moving mountain streams which flow over rocks and waterfalls are high in oxygen due to the amount of surface area of the water that is exposed to the air.


Fast moving mountain streams are high in nutrients. Organisms have adaptations to hold on in fast moving water, resulting in a large diversity organism.


Slow moving flood plain rivers are high in oxygen due to the amount of surface area of the water that is exposed to the air.


Slow moving flood plain rivers are low in nutrients. These rivers move too slow for plant growth and other organisms to survive.

Answers

Answer:

fast moving mountain streams which flow over rocks and waterfalls are high in oxygen due to the amount of surface area of the water that is exposed to the air.

Fast moving mountain streams are high in nutrients. Organisms have adaptations to hold on in fast moving water, resulting in a large diversity organism.

Slow moving flood plain rivers are high in oxygen due to the amount of surface area of the water that is exposed to the air.

Slow moving flood plain rivers are low in nutrients. These rivers move too slow for plant growth and other organisms to survive.

30 living things name​

Answers

Answer:

Here is a list of living things:

HumansGorillasApesMonkeysGiraffesPigsHedgehogsCowsHorsesSheepGoatLambDuckHummingbirdOstrichCockroachCicadaCentipedeKatydidElephantTapirRhinocerosHippopotamusTigerSquirrelSilverfishOctopusSharkWhaleDolphin

Hope this helps!

Animals:dogs,cats,tigers,sharks,human beings,cows,lions,rabbits,fish,eagles

Plants:mangoes, apples,oranges,bananas,grapes,coconut,lime,peach,pear,

Birds:owl,dove,goose,turkey,raven,parrot,ostrich,hawk,eagle,pigeon,robin

What is the monomer of DNA and RNA? Which part is variable (can change)?

nucleotide, base
Onucleotide, phosphate
amino acid, R group
monosaccharide, sugar​

Answers

nucleotides are your monomer of DNA and RNA.

Answer:

nucleotide, phosphate

Explanation:

Which of the following statements about symbiotic relationships is true?
In mutualism, neither organism benefits.
At least one organism benefits from commensalism.
In parasitism, both organisms are harmed.
Both organisms benefit from commensalism.

Answers

Answer:

At least one organism benefits from commensalism.

Explanation:

The symbiotic relationship of commensalism is when one organism benefits and the other organism receives neither benefit nor harm.

So, this statement is true, because at least one organism has to benefit from the relationship, while the other will not be harmed or helped.

How does the statement Archaea have ribosomes, similar to eukaryotes support the theory presented in the article

Answers

Answer:

Since archaea are some of the oldest forms of life on Earth, the similarities suggest that some structures in eukaryotic cells, such as ribosomes, partially evolved from archaea

Explanation:

Starting with the cell, list the next four steps in the levels of organisation for an animal

Answers

Answer:

cell, tissue, organ, system, organism

a)what are the difference between two species of minnows?​

Answers

Animals are often individually consistent in their behavior, not only over time, but also across different functional contexts. Recent research has focused on phenotypic and evolutionary mechanisms explaining such personality differences through selection. Parasitism and predation induce important mortality and fitness costs, and are thus main candidates to create and maintain personality differences in the wild. Here, we present data on the behavioral consistency of the Eurasian minnow (Phoxinus phoxinus) from two populations that live in different tributaries of the same river, but whose ecological environment differs fundamentally with regard to predation and parasitism. We experimentally demonstrate that individual minnow in both study populations are consistent in their boldness and activity. However, the two study populations differ notably: in the high predation and parasitism risk population fish show higher mean boldness, but tend to be less active than fish in low predation and parasitism risk population. Parasite (Diplostomum phoxini) load was negatively, but not statistically significantly, associated with fish activity level. Our study suggests that parasitism and predation are likely important agents in the ecology and evolution of animal personalities.

If you wanted to observe a living organism-an amoeba, for example-which type of microscope would you use?
A. electron microscope
B. light microscope
C. either one
D. niether one

Answers

Answer:

compound light microscope

Explanation:

an amoeba is a microscopic unicellular protist

HELPPPP!!! HELPPPPP!! PLSSSS!! ASAPPPP

Answers

D - the chipmunk population would likely continue to increase

What are the solutions of the following equation?

Answers

Answer:

Explanation:

5 ( x + 3 ) - 4 = 8 ( x + 3 ) - 4

5x + 15 - 4 = 8x + 24 - 4

5x + 11 = 8x + 20

By substituting,

5x - 8x = 20 - 11

-3x = 9

x = -9 / 3

x = -3

So the correct option is D

Hope this helps

plz mark as brainliest!!!!!!!!!!!!!

5(x+3)-4=8(x+3)-4
5x+15-4=8x+24-4
Start combining
5x+11=8x+20
5x-8x=20-11
-3x=9
X=9/3
X=-3

helppp plzzzz
what is the relationship between atmospheric pressure and the density of gas particles in an area of decreasing pressure?
A. as air pressure in an area decreases, the density of the gas particles in the area increases and decreases in an alternating pattern.
B. as air pressure in an area decreases the density of the gas particles in the area increase.
C. as air pressure in an area decreases, the density of the gas particles in that area remains constant.
D. as air pressure in an area decreases the density of the gas particles in that area decrease.

Answers

Answer:

As air pressure in an area increases, the density of the gas particles in that area increases.

Explanation:

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Javier works 2 and 2 over 5 hours on Monday and 3 hours on Tuesday. His pay rate is $10.25 per hour. How much will be paid, in dollars for working on Monday and Tuesday? This is part of a letter from your Australian pen-friend, Anna.What have you been doing lately? What are your plans forthe near future? Write back and let me know.Yours,AnnaWrite your letter (140-190 words). An ideal sample weighing 1.28g at 127C (temp) and 1 atm has a volume of 0.250L. Determine the molar mass of the gas. Explain the reason why when you find one angle you can find the remaining angles. Doug is a zookeeper in charge of monitoring the "aquatic" section at the North End Zoo. A baby dolphin was born on Wednesday and weighed 31 pounds. The dolphin is growing at an average rate of 2.3lbs per day. Write a function that can be used to find the weight, w(x), of the dolphin after x, days. A country, called Simpleland, has a language with a small vocabulary of just the, on, and, go, round, bus, and wheels. For a word count vector with indices ordered as the words appear above, what is the word count vector for a document that simply says the wheels on the bus go round and round.Please enter the vector of counts as follows: If the counts were ["the"=1, on=3, "and"=2, "go"=1, "round"=2, "bus"=1, "wheels"=1], enter 1321211.1 point You are on a road trip and need to travel 300 km. The speed limit is 80 km/hr. Howlong will it take you to make the trip? The sum of three consecutive odd numbers is 69. What is the biggest number? What is the distance between 9 and 11? What was the major effect of the Stamp Act (1765) on colonial trade?A. The colonists no longer needed British goods. B. The British refused to sell certain products to the colonists. C. The law led to a decline in the value of colonial currency. D. Many colonists boycotted British goods. The following table shows the cost of 444 party favor packs. For example, the Slinky costs \$9$9dollar sign, 9 for a pack of 555.Toy pack Cost (dollars) QuantitySlinky 999 555Wind-up robot 161616 888Yo-yo 151515 666Emoji beach ball 333 222Which toy pack has a cost of \$2.50$2.50dollar sign, 2, point, 50 per toy Demarco and Janine Jackson have been married for 20 years and have four children who qualify as their dependents (Damarcus, Janine, Michael, and Candice). The couple received salary income of $100,000 and qualified business income of $10,000 from an investment in a partnership, and they sold their home this year. They initially purchased the home three years ago for $200,000 and they sold it for $250,000. The gain on the sale qualified for the exclusion from the sale of a principal residence. The Jacksons incurred $16,500 of itemized deductions, and they had $3,550 withheld from their paychecks for federal taxes. They are also allowed to claim a child tax credit for each of their children. However, because Candice is 18 years of age, the Jacksons may only claim the child tax credit for other qualifying dependents for Candice. (Use the tax rate schedules.)Comprehensive Problem 4-55 Parts-c through fa. What would their taxable income be if their itemized deductions totaled $28,000 instead of $16,500?b. What would their taxable income be if they had $0 itemized deductions and $6,000 of for AGI deductions?c. Assume the original facts but now suppose the Jacksons also incurred a loss of $5,000 on the sale of some of their investment assets. What effect does the $5,000 loss have on their taxable income? please answer this question with an explanationwill mark brainiest Jason left his house at 9:58 A.M. He arrived atthe baseball field 16 minutes later. 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At the end of the day, Lucia realizes that she gave out the same number of red and blue flyers. What is the minimum number of flyers of each color? Flyers Elena is making an open-top box by cutting squares out of the corners of a piece of paper that is 11 inches wide and 17 inches long, and then folding up the sides. If the side lengths of her square cutouts are inches, then the volume of the box is given by V(x)=x(11-2x)(17-2x) Explain why the bottom of the ship is deeper below the surface of the seawhen the ship is fully loaded with cargo How many cells does one gram of yeast contain?