The best and most correct answer among the choices provided by your question is the first choice or letter A. The swamp forests formed into tropical rain forests.
The Carboniferous Period<span> is famous for its vast swamp forests, such as the one depicted here. Such swamps produced the coal from which the term </span>Carboniferous<span>, or "carbon-bearing," is derived. The </span>Carboniferous Period<span> lasted from about 359.2 to 299 million years ago* during the late Paleozoic </span>Era<span>.</span>
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Answer:
Your belief system is the invisible force behind your behavior. Together with other factors such as your personality, your genetic set up and your habits, your belief system is one of the strongest forces that affects any decision that you are making.
Because the United States struggled to Unite and quell the rebellion, the answer is B. The United States realized it needed to be more centralized in order to deal with internal and external threats.
