How many seismographs are needed to find the epicenter of an earthquake? why is this number significant?
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Which is not an example of a  cultural  bond found in a nation-state? a. a holiday traditionb. a common religionc. a favorite placed. a shared history

State a hypothesis with a numerical estimate of the calories contained within a peanut based on the nutritional information on the package label combined with what you have learned in this lesson about fuel efficiency and calorimeters.

Largest layer of atmosphere international space station orbits ultraviolet radiation causes ionization the phrases describe what layer of earth's atmosphere?