Lakes and rivers constitute a. 87% of freshwater b. a tiny fraction of earth’s freshwater c. a majority of earth’s freshwater d. a majority of water on earth

Which term refers to the total dollar value of the goods and services produced in a country in a year?

Resperation is a way to release carbon back into the atmosphere

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.