What is the difference between the saturated zone and the unsaturated zone? What is the name of the undulating surface that forms the top of the saturated zone?
What will be an ideal response?
The saturated zone is the portion of rock or regolith where the pores are completely filled with ground water. In the unsaturated zone the pores are filled with air and ground water. The top of the saturated zone is called the water table.
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Which region of Brazil has socioeconomically lagged behind the rest of the nation?
A) the Rio de Janeiro to Sao Paulo axis B) the Amazonian interior C) the northeast D) the southern region E) the central interior
In September, the Intertropical Convergence Zone is shifted to
A) the north of the Isthmus, and winds blow across the Isthmus, from the northeast. B) the north of the Isthmus, and winds blow across the Isthmus, from the southwest. C) the south of the Isthmus, and winds blow across the Isthmus, from the southwest. D) the south of the Isthmus, and winds blow across the Isthmus, from the northeast.
The step before enacting a law or rule in the policy cycle is to
A. Suggest changes B. Develop proposals C. Build support for the problem D. Implement policy E. Set an agenda
DNA phylogenies revealed ________ major branches, or groups of organisms, two of which were types of ________.
Fill in the blank(s) with the appropriate word(s).