Small changes in Earth?Sun orbital geometry that resulted in Quaternary glacial and interglacial cycles are called
A) Milankovitch cycles.
B) carbon cycles.
C) Keeling curves.
D) sunspot cycles.
Answer: A) Milankovitch cycles.
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List some regions of the U.S. where there are significant populations living on alluvial fans. Why is it dangerous to build there?
What will be an ideal response?
The processes depicted in the rock cycle also relate, in large part, to
A) rock color. B) plate tectonics. C) mineralogy. D) the Neptunist Doctrine.
Which of the following statements is false?
A. It is more economical to have consumers separate trash before pickup than to use materials recovery facilities. B. Glass, iron, and aluminum can be recovered from solid wastes. C. The source-separation approach usually involves consumers separating trash into four collections: glass, paper, plastic, and metal. D. Materials-recovery facilities provide many more jobs than low-technology recycling. E. Materials-recovery facilities need a large input of garbage to be financially successful.
Which evidence from the sea floor shows that tectonic plates move ?
a) The seafloor is youngest near a mid ridge and farther away. b) The seafloor is much older than the continents c) Mid-ocean ridges form the longest range of mountains on earth. d) The seafloor is thinner than continental crust.