Question: You observe samples from two coal balls collected in different places. Sample 1 contains roots and stems of tree-size lycophytes and horsetails. Sample 2 contains

You observe samples from two coal balls collected in different places. Sample 1 contains roots and stems of tree-size lycophytes and horsetails. Sample 2 contains evidence of sphagnummoss “leaves,” yellow cedar needles, and alder pollen. From what time period do you think each sample originated? Explain your answer.

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