What does the above chart explain about migration trends? a. it shows that migration did not start until modern technology was developed. b. it shows that agricultural societies are the most developed societies. c. it shows that as human needs and resources change, societies develop differently. d. it shows that having a strong artistic culture will not increase migration to a region.

Why might a single rock layer exhibit different types of sedimentary rocks within it? view available hint(s) why might a single rock layer exhibit different types of sedimentary rocks within it? such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed in a sequence over time. such a rock layer, termed a facies, when traced laterally represents a single depositional environment that formed over time. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed in a sequence over time.

What are some of the impacts of humans on the earth?

The pollution crisis in the soviet union was cause by