Yes it is a reliable source
Explanation: it shows the earth all in one. Makes it easier to study
Rosario (Spanish pronunciation: [roˈsarjo]) is the largest city in the province of Santa Fe, in central Argentina. It is located 300 km (186 mi) northwest of Buenos Aires, on the western shore of the Paraná River.
Economic geography is the study of the location, distribution and spatial organization of economic activities across the world. It represents a traditional subfield of the discipline of geography. However, many economists have also approached the field in ways more typical of the discipline of economics
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Plate tectonics relate to the availability of mineral resources because some resources can cause a hazard that can damage other resources.
Hello There! ^_^
Your question: Which one of the following times would be the longest..?
You answer: The Paleozoic Era would be the longest time span.
the answer is option B.
Hope this helps!