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The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils
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1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency
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If pure water has a pH of 7 and is considered neutral, which substances from the simulation are more...
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