In which of the following scenarios is a chemical change taking place? * 3 points
Quartz crystal fractures when struck.
Sugar dissolves when poured into tea
Liquid water turns to a vapor at 100 degrees Celcius.
Sodium metal reacts with water to form sodium hydroxide and hydrogen gas.

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.