<span>The correct answer should be C. oil spills. If you take oil into the United States then there's bound to eventually be an oil spill. Habitat loss can occur when you deforest lumber in order to give it to the US because they pay you for it so the animals in your forest lose homes. Air pollution is because of all the fuel used to transport things into the US.</span>
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Explanation:
This is a process of taking part of a healthy plant, replanting it, and having it grow. Since cloning is a form of asexual plant reproduction–meaning only one 'set' of DNA–the resulting clones are an exact replica of the parent plant.
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Carbon-14 has a half-life of 5,730 years. Taking one atom of 14C, this will either have decayed after 5,730 years, or it will not. But if this experiment is repeated again and again, it will be seen that the atom decays within the half life 50% of the time.
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Answer:
cells connecting to each other in colonies and communicating.
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