Scientists are interested in the rate of change, in other words, how fast the carbon dioxide (ppm) is increasing as the years go by.  In 1971, the globally averaged CO2 concentration was approximately 330 ppm. If the CO2 concentration in 2000 was about 384 ppm, calculate the average rate of increase per year.

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form