Por que fue importante que pasteur demostrara que los micribios estan presentes en el aire

the answer is c) an oak tree

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects