Please help !! How have advances in medicine and technology affected population growth?
A. They have increased birth rates and lowered death rates.
B. They have lowered birth rates and lowered death rates.
C. They have not affected birth rates or death rates.
D. They have caused an abrupt decline in the human population.

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.