ENADE Geografia Practice Questions - ENADE Geografia - Exame Nacional De Desempenho Dos Estudantes Exam

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During the austral summer, the South American continent experiences significant atmospheric moisture transport known as the 'flying rivers' (rios voadores). Which atmospheric mechanism and air mass are primarily responsible for generating and directing this massive water vapor flux from the Amazon basin toward Central-Western and Southeastern Brazil?

The Maritime Tropical mass (mTa), which moves directly inland over the São Francisco basin and is topographically deflected by coastal mountain ranges. The Continental Equatorial mass (mEc), enhanced by Amazonian forest evapotranspiration and deflected southward along the eastern flank of the Andes. The Polar Atlantic mass (mPa), which pushes persistent cold frontal boundaries northwards to merge continuously with easterly trade winds across the Pantanal depression. The Continental Tropical mass (mTc), originating in the Gran Chaco depression and drawing moisture eastward via intense thermal low pressure and adiabatic compression.

Correct Answer:

The Continental Equatorial mass (mEc), enhanced by Amazonian forest evapotranspiration and deflected southward along the eastern flank of the Andes.

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