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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Answer:
thank u.......................
I think it’s a hurricane because they are usually on the coast for example Florida
Answer:
Yes...
Explanation:
Hypothesis is a proposed explanation made by reasoning without assuming what the truth is..
From the question;
Formal hypothesis: Eating chocolate may cause pimples because chocolate will result to an increment in the amount of oil in the skin and this will result in pimples.
2. Salt in water can affect plants growth.
Formal hypothesis: plants grow beside the ocean will grow slower because the salt present in the soil will destroy the root of plants.
