What happen in convection current can be described as
A: Cold, dense material sinks while hot, less dense material rises.
Some types of global convection cells that exists are:
Therefore, option A is correct.
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A convection cell is a circular pattern of movement that occurs when there is a temperature difference within a fluid or gas. Hot, less dense material rises while cold, dense material sinks in a convection cell.
A convection cell is a circular pattern of movement that occurs when there is a temperature difference within a fluid or gas. In a convection cell, hot, less dense material rises while cold, dense material sinks. This creates a continuous flow of particles which transfers heat energy from one location to another.
This process can be observed in various natural phenomena such as a boiling pot of water, the movement of air masses in the atmosphere, or the circulation of magma within the Earth's mantle. It plays a crucial role in heat transfer, helping to distribute heat throughout a system or medium.
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Answer:
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground.
Explanation:
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground.
Answer: A cave is a geographical feature and a natural opening in the ground extending beyond the zone of light and is often large enough to permit the entry of animals and humans. Occurring in a wide variety of rock types and caused by widely differing geological processes, caves range in size from single small rooms to interconnecting passageways that span many miles in length.
Explanation:
Answer:
Explanation:Originally Answered: Is it possible that one day English is no longer the world's lingua franca?
Yes. All you need is economic decline and US losing its economic and violence hegemony. Within EU, it is already happening.
With Brexit, English will cease being one of the official languages in EU. Either German or French will replace it as the hegemonic language, and I speak both. The only Anglophone nation in EU remaining will be Ireland, whose population basis and economical significance are not remarkable enough to heave it as the official language.
China has already eclipsed US as the dominant economy in the world, India is a rising might, and the Schweitzer of the world economy is shifting gradually to the other side of the Pacific. NATO has proved more or less a paper tiger (with nuclear teeth, of course) and US is becoming more and more isolationist all the time.
Brexit is basically UK shooting its own leg. With Brexit, UK will lose all the benefits of the internal markets of EU, the cultural community within Europe and the cultural and linguistic domination and preference within EU. It effectively will become the 51st state of US.
Perhaps the greatest variable in this thing is the incompatibility of US weights and measures with the rest of the world. The rest of the world is Metric, while US clings to their age-old foot-pound units which should have been ditched already centuries ago. They create an immense impediment on world trade, and animosity towards US. This can be a trigger on English also losing its status as lingua franca.
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