A. Is the correct answer, due to colonization Spanish and Portuguese are popular languages in Latin America
Answer:
cross-sectional
Explanation:
Cross-sectional design: In psychological research, the cross-sectional design is referred to as one of the types of "observational study design". A researcher or experimenter while conducting cross-sectional research or study tends to investigate or study the various exposures and outcomes in the different participants or subjects involved in the research at the same time.
In cross-sectional study design, the participants involved in the study differ in "variable of interest" yet share a few characteristics.
In the question above, the researcher is employing a cross-sectional design to her study.
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Answer: FDR's ambitious plan transformed the Tennessee Valley by creating dams and reservoirs for electricity and flood control, controlling soil erosion through forest restoration and better farming techniques, and improving navigation and commerce along the Tennessee River.
