How did O2 levels affect the size of living things? Also, what have humans recently used the vegetation from this time period for?

Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?

Is there any solid scientific evidence that humans have been cloned?

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?