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This informational text resource is intended to support reading in the content area. Using fossilized trees, scientists can investigate how the Earth has changed over millions of years. Tree fossils in the Arctic show that this region was once considerably warmer and was home to large forests teeming with life. Chemical analyses can also show what the soil and water of these regions looked like millions of years ago. This information can help predict what the world might look like as the Earth warms once again.
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