What lines of evidence support the continental drift hypothesis? Alfred Wegener, in the first three decades of this century, and DuToit in the 1920s and 1930s gathered evidence that the continents had moved. They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and […]

What is 66.5 degrees south latitude called? Antarctic Circle What is the name of the line of latitude at 23.5 degrees south? Tropic of Capricorn Is Greenland 6 months of darkness? The 6 months day/night cycle is exactly happening only at the poles (as pointed out in comments). Between the poles and the arctic circle […]

What are some examples of cultural diffusion? The definition of cultural diffusion is the spread of the beliefs and social activities of one culture to different ethnicities, religions, nationalities, etc. An example of cultural diffusion is the tradition of the German Christmas pickle becoming popular in the United States. What are two examples of cultural […]

How does the new seafloor form at the Mid-Ocean Ridge? Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt. Why does new oceanic crust form at mid-ocean ridges? […]

What do population geographers study? Population geography is a branch of human geography that is focused on the scientific study of people, their spatial distributions and density. What is population change in geography? Population change, defined generally, is the difference in the size of a population between the end and the beginning of a given […]

How are highways numbered in the United States? Major Interstate routes are designated by one- or two-digit numbers. Routes with odd numbers run north and south, while even numbered run east and west. For north-south routes, the lowest numbers begin in the west, while the lowest numbered east-west routes are in the south. Why are […]

What is the only Southern American country that has a Portuguese heritage? Rest of South America Although Brazil is the only Portuguese-speaking nation in South America, it has the largest population, area and economy on the continent. Is Portuguese the most spoken language in South America? Spanish is the most spoken language of South America […]

Are marshes bogs and lakes are examples of freshwater wetlands? Marshes, bogs, and lakes are examples of freshwater wetlands. Is a bog a freshwater wetland? A bog is a freshwater wetland of soft, spongy ground consisting mainly of partially decayed plant matter called peat. Bogs are generally found in cool, northern climates. They often develop […]

What type of climate is Antarctica? Most of Antarctica has an ice-cap climate (Köppen classification EF) with very cold, generally extremely dry weather. Is Antarctica a polar climate? On Earth, the only continent where the ice cap polar climate is predominant is Antarctica. All but a few isolated coastal areas on the island of Greenland […]

Which of the following adaptations does not help an animal move through the water? A smooth, almost gutless body is light, which is important when animals have to go through water quickly. A thick layer of blubber is only used for insulation, and would hamper an animal’s progress through water due to its weight. The […]