90 points and whoever does it right gets brainliest scientists use potassium-argon method to determine the age of a rock sample. three separate tests showed the rock to be 1.3 billion years old. however, scientists know the rock must be at least 2.5 billion years old based on the rocks around it. how is this possible? the radiometric dating was off due to loss of daughter isotopes. the relative dating was off due to the loss of daughter isotopes. the relative dating was done incorrectly. the radiometric dating was done incorrectly.
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What is the difference between how ionic and covalent bonds form
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Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed
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90 points and whoever does it right gets brainliest scientists use potassium-argon method to determ...
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