What causes high and low tides? a. the ocean's conveyor belt and refraction b. earthquakes and volcanoes c. cold and warm currents d. the moon's gravity and earth's rotation

The primary agent of contact metamorphism is

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Although china’s total economic output, measured by gross domestic product (gdp), is third largest in the world, it is considered a developing nation. what is most likely the most important factor for this designation? a. china’s government spends money on things that do not benefit human development. b. china has a large population, so its gdp per person is only modest. c. china has a strong economy but weak literacy and school attendance rates. d. china’s high rates of disease offset the country's economic gains.