18. What does the sim and the atomic-scale model show that simple observations of properties cannot? a. the conservation of all of the atoms

b. what happens to the atoms during a chemical reaction

c. how atoms separate and rearrange to form new substances

d. all of the above

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.