In your own words, explain how phylogeny provides reliable information about evolution of life on earth.

Write a 150-word essay describing the effect of people's activities on the environment in the region.

Sandstones that form in aeolian (wind/desert) environments appear very different from other sandstones, such as those formed in a beach/ shoreline environment and in rivers on land. give three identifying properties for each of the three sandstones that would tell a geologist which depositional environment they formed in. consider things such as the relationship between transportation and grain size, shape, roundness, sorting, fossils and composition.

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