Describe how the universe, galaxies, stars, and chemical elements formed What will be an ideal response?
Scientists believe that the universe originated with the Big Bang approximately 14 billion years ago.
At the moment of the Big Bang, there was only energy, no matter. In the first second following the Big
Bang, the four basic forces separated, and the universe experienced enormous expansion. Galaxies and
stars came together, and the chemical makeup of the universe changed. In the early universe, the only
chemical elements were hydrogen and helium, but now 2% of the universe is all other elements by
weight.
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German geographer Friedrich Ratzel suggested that each nation needed Lebensraum, which means
A) geopolitics. B) room to live. C) survival of the fittest. D) the strong will survive at the expense of the weak.
Use the Venn diagram below for this question.
Which feature(s) are present at plate boundaries?
A. Stratovolcano B. Shield volcano C. Cinder Cone D. All of the choices are correct.
Tapeworms living inside the intestines of their host are an example of what type of relationship?
A. endoparasitism B. ectoparasitism C. predator/prey relationship D. commensalism
Evidence supporting the theory of continental drift includes ________.
A. the presence of similar glacial patterns across oceanic basins B. the fit of continental margins on opposite sides of the Atlantic Ocean C. the presence of similar mountain belts along continental margins across oceanic basins D. the distribution of fossil organisms E. All of these are correct.