That answer would be D.
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Answer:
B is the answer
B. Improved living conditions resulted in a decline in the mortality
rate.
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Snakes can live up to 9 years. They slither up to 18 mph. Snakes are reptiles that are elongated, limbless, and carnivorous. Another interesting thing about snakes is that they don’t have eyelids. The last fact is that snakes can open there mouths up to 150 degrees so they can swallow there prey.