How does the formation of coal differ from the formation of oil ? How are these processes the same?​

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

What is the primary goal of human communities?

What causes darkening of the skin as melanin production increases