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Chemistry, 22.06.2019 06:30
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
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Chemistry, 23.06.2019 09:00
Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater
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Chemistry, 23.06.2019 09:10
Complete the following radioactive decay problem. tan+on-? c+th
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What is the progression of a space rock as it from space to earth’s surface? *ten points* ! dont...
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