<em>The answer is </em><em>Two </em><em> </em>
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<em>and now im just tyypiing to fill the 20 letter limit thingyyy</em>
Answer:
a. The convective circulation in the upper mantle
Explanation:
The engine that powers plate movement is the formation of convective cells within the mantle.
Convection is a heat transfer method usually that occurs within fluids.
The internal heat engine provides a source of temperature that makes part of the mantle to occur in a weak molten form. This is the asthenosphere. Overriding the layer is the lithosphere.
Convection allows for dense and cold lithospheric plate to sink into the asthenosphere and the hot, buoyant asthenosphere rises to the surface to replace it. The alternation between these processes results in mantle convection and eventual plate movement.
spain is the only nation that does not poossess nuclear weapons.
<u>Aldo Rebelo's goals for preserving Portuguese:</u>
''Aldo Rebelo'' is a famous name that known for protecting the Portuguese by not letting new words of English come in to use and he feels that this interference by the English is directly intervening into the heritage and culture of those people and he is against the spread of English language.
This movement started by him was at an international level and is known as verbal nationalism. A bill was also passed for this. He is doing this so that people can use their own language in their native land and even in work places.
