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Geography, 22.06.2019 14:40
Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite
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Geography, 23.06.2019 14:30
Compared with the land in the highlands, the lowlands region of england a) rockier and more difficult for farmingb) the center of business and industryc)richer in coal reservesd)covered by more fertile farmland d) covered by more fertile farmland
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Geography, 23.06.2019 18:30
What are two australian geographical features that hindered early exploration? western plateau gulf of carpentaria great barrier reef great dividing range
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Geography, 23.06.2019 21:50
Ineed to draw a simple map of oil where can be found on the map.
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