Barry is applying the principles of relative dating to a building that has been constructed. analyzing a section of the building, barry says
that the lowest part of the section must have been constructed
the parts above it were constructed. he bases this
conclusion on the principle of
also, looking at a crack forming in the building wall, he says that the crack
must be
the wall. barry used the principle of
to arrive at this conclusion.
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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.

Why is the indus river so important to the people of pakistan?

What is the amount of organic matter in all living organisms in a habitat called?