In what way is the european union similar to a single, independent nation?

a. it operates its own industries.
b. it has territorial borders.
c. it has its own bill of rights.
d. it trades with other nations.

List two limitations of natural selection

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere, b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify, d)anaerobic bacteria kept thriving with more oxygen

Whats one way that rocks do not follow the typical rock cycle pathway?