The Paraguay and Parana Rivers jointly form a 3,302-kilometer waterway system connecting Argentina, Brazil, Bolivia, Paraguay, and Uruguay. It is a major transportation route between the continent's interior and the Atlantic Ocean through the Rio de la Plata, and carries nearly 80 percent of Paraguay's trade.
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The equator
Because Earth is a sphere, not all part of the Earth receives the same amount of solar radiation. More solar radiation is received and absorbed near the equator than at the poles. Near the equator, the Sun's rays strike the Earth most directly, while at the poles the rays strike at a steep angle.
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When air high above the Earth's surface is cooled below the dew point it is likely to form B, clouds.
The ozone layer is contained within the stratosphere. The stratosphere is the atmospheric layer between the trophosphere and the mesosphere. The stratosphere bridges both cooler and warmer temperatures, which is a direct result of the UV radiation absorbed by the ozone layer, which is mainly found in the lower part of the stratosphere.
