Volga River is the longest river in Europe.
It is also a source of hydroelectricity for many Russian cities along its basin
We have all noticed that if we hike from a place with low elevation and go up at a place with high elevation, that the temperature is gradually dropping, thus giving us a clue that the lower places are warmer, while the higher places are cooler. The reason for this, even though both the places with low and high elevation are located in the troposphere, thus the same atmospheric layer, is that the density of it is not the same everywhere. The troposphere has the highest density at its lowest points, and as the height increase the density decreases. Since the higher parts are less dense, that means that there are less gases, thus there are less molecules that are further apart from each other. This results in lesser absorption of heat, so this parts are cooler, while the lower parts are warmer because the troposphere is denser, there's more molecules that are also closer to each other, thus they absorb more heat.
Bolivia, Paraguay, Mongolia, Chad, Kazakhstan, Switzerland
<span>Many East and South Asian migrants came to the Caribbean to find work after Slavery was abolished in the 19th Century.
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The abolition of slavery was led by the British Empire which had an impact all over the world.
As slavery was abolished, there were numerous opportunities to work on cotton and sugar plantation in the <span>Caribbean</span>.
The descents of these people still live on the Islands and formed a distinct culture of their own.
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D) Mars & Jupiter is correct
