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The mantle rock descending from the oceanic crust causes the water in oceanic crust to be released. This lowers the melting point of the rock and causes it to melt.

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How did continental crust form on earth?

The crust, is the surface of the Earth; therefore on the top. The above is true, however it is slightly more complicated than this! Crust is formed at mid ocean ridges where magma rises to the surface as tectonic plates move apart. It is also formed (perhaps counter-intuitively) at destructive plate margins where volcanism occurs and the lava adds to the overlying crust. Oceanic sediments build up at the boundary of the continental crust as the oceanic slab scrapes against the overlying continental crust as it subducts (this is known as an accretionary prism).


Why is hydrogen peroxide used on minor cuts and scrapes?

Hydrogen peroxide is used on minor cuts and scrapes because it acts as an antiseptic. It helps kill bacteria and prevent infection. Additionally, it can help remove debris and dirt from the wound, promoting healing. However, it should be used with caution and in moderation, as excessive use can delay wound healing.


What causes a glacial valley to be u shape?

When the glacier is moving down the side of the valley it scrapes of the rocks. The grinding changes the shape of the valley so that it is rounded.


What are the risks of micro dermabrasion?

The risks of microdermabrasion are supposedly minimal. If this procedure is not performed correctly. scrapes, burns and bruises may occur. Redness and dry sometimes occur after the procedure is complete.


What was mercurochrome used for?

Mercurochrome was used as an antiseptic to prevent infections in minor cuts and scrapes. It was commonly applied to wounds to help kill bacteria and promote healing. However, it is no longer recommended for use due to its mercury content, which can be harmful.

Related Questions

What happens when oceanic crust scrape against continental crust?

As the plates scrape against each other, one goes under the other (for instance, the Pacific plate is inching it's way under the North American plate) causing tension to build along that point. At some point, enough tension builds that the upper plate "springs" back up, possibly causing an earthquake, and possibly causing a tsunami. This is what caused the Indonesian tsunami 12/26/2004.


How did continental crust form on earth?

The crust, is the surface of the Earth; therefore on the top. The above is true, however it is slightly more complicated than this! Crust is formed at mid ocean ridges where magma rises to the surface as tectonic plates move apart. It is also formed (perhaps counter-intuitively) at destructive plate margins where volcanism occurs and the lava adds to the overlying crust. Oceanic sediments build up at the boundary of the continental crust as the oceanic slab scrapes against the overlying continental crust as it subducts (this is known as an accretionary prism).


Can Eucalyptus leaves cure cuts and scrapes?

No. Eucalyptus leaves cannot cure cuts and scrapes.


What is a wound that scrapes off the epidermis called?

A wound that scrapes off the epidermis (or part of the epidermis) is called an abrasion.


What actors and actresses appeared in Shapes and Scrapes - 1920?

The cast of Shapes and Scrapes - 1920 includes: Dorothea Wolbert


Why is there water on a field hockey field?

Hockey turfs have a carpet-like surface. By wetting the fields there is less chance of carpet burns or nasty scrapes occurring when skin scrapes the surface (such as when a player falls or scrapes knuckles).


Where were the scrapes on the Titanic?

it was at the bow on the bottom.


How do i prevent scars from scrapes?

Nothing just leave it


Why do you sometimes wake up with scrapes?

what a stupid question


What is a hyperbole for summer?

Summer scrapes the heels of spring


What are Abrasions also called?

They are also called scrapes


What are scrapes also called?

They are also called Abrasions