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frozen [14]
3 years ago
7

Plz help!!! 20 points!!!! How do convergent boundaries of oceanic crust form islands?

Geography
2 answers:
svp [43]3 years ago
5 0

Usually, one of the converging plates will move beneath the other, which is known as subduction. Deep trenches are often formed where tectonic plates are being subducted and earthquakes are common. As the sinking plate moves deeper into the mantle, fluids are released from the rock causing the overlying mantle to partially melt. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary

A.

77julia77 [94]3 years ago
4 0

Answer

A. As two oceanic plates come together, one plate may sink and slide beneath the other causing underwater volcanoes to form. The volcanoes will build up and gradually extend above the water’s surface forming islands.

Explanation

The Islands are formed through the subduction process where the oceanic and continental plates converge. The dense and less thick oceanic plate is forced under the continental plate. The plate gets hotter the deeper it is pushed. When the plate reaches a depth facilitating the melting point, a molten rock is formed and it rises to the surface as forming a new volcano on the continental plate.

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Tokyo, the capital of Japan, is located on which of Japan's islands?
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Asia has 60% of the world's population, but only 20% of the languages dying. Why might that be?
Advocard [28]

The percentage of languages that are dying out in Asia is only around 20% from the total number of languages dying out in the world, despite it having around 60% of the global population is due to two reasons:

- <em>Number of languages;</em>

Asia, even though it has around 60% of the world's population, it only has around one third of the languages spoken in the world, so automatically there's a big disproportion between the number of population and number of languages, thus giving it a smaller percentage of languages dying out.

- <em>Keeping the tradition;</em>

Lots of Asian nations are not very willing to let their traditional language to die out and continue to speak it. Apart from the traditional point of view, another reason is that Asia has global economic powers, so learning languages like the English or Spanish are not of great benefit in general, so the pressure is much lesser.


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3 years ago
Would you expect to find dinosaur fossils in undisturbed rocks that are above the iridium
MrRissso [65]

Answer:

All dinosaur fossils found by archeologists have been found a few centimeters below the iridium layer. So, the possibility of finding dinosaur fossils above the iridium layer is very slim.

Explanation:

Over 65 million years ago, dinosaurs roamed the earth but were canceled out as a result of an extraterrestrial impact on the earth's crust. Research proved that an asteroid brought the end of dinosaurs as the element iridium was found in the earth (since iridium is abundant in asteroids and not the earth's crust).

Records of fossils found have been between 13 to 60 centimeters below the iridium or the K-T boundary as it is called.

8 0
2 years ago
Which of these is not an advantage of a constructed wetland for treating livestock wastewater? a) May facilitate mosquito breedi
Paladinen [302]

Answer: The following is not an advantage of a constructed wetland for treating livestock wastewater:

<em>a) May facilitate mosquito breeding</em>

<em>e) Can be aesthetically pleasing</em>

It is an bionic ground to treat industrialized waste matter. It is fashioned for land restoration after excavation, or as a extenuation step for areas squandered to development .

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3. The ozone layer is a layer into another layer, the stratosphere. The ozone layer is extremely important, as it has the property that enables it to absorb very big amount of the ultraviolet radiation from the Sun. This layer is actually crucial for the survival for pretty much all organisms on Earth, as it stops the ultraviolet radiation from frying them. The depletion of the ozone layer is a serious problem, as it will cause larger portion of the ultraviolet to get to the surface, which will cause serious damage to most of the living organisms, including the humans, and maybe even result in mass dying out of the species if the depletion becomes too big.

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