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Chemistry, 22.06.2019 07:30
What is i fracture in the crust called when land move up, down or sideways
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Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size
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Chemistry, 22.06.2019 09:30
In 2002, the rare earth elements mine in mountain pass, california was closed because
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Explain how the copper could be in the lake sample near the picnic area but not have been detected b...
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