Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of . the fossils tell us that polar regions .

The first blank is trace fossils and the second blank is had tropical plants that could grow in the ice.

1st one is carbonization and the second one is and might have had a different climate in the past

age range would be the answer

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.