After 10 years, the isotope would have had two half lives. For each half life, half of the material reacts. Therefore, after one half life, 50% remains. Then, after a second, 25% remains. D is the correct answer.
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The correct answer is B
<span>B. the climate is cooler than it would be without a current flowing by it
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This is because the ocean conveyor belt help balance the climate of western Europe,by releasing heat as it moves pole ward, which moderates the cold temperatures in the region.
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Answer:
Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.
Explanation:
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The process in which a gene from one organism is inserted into the DNA of another organism is called genetic engineering or recombinant DNA technology. It is done to transfer the desirable trait of one organism to another to produce a better organism.
