These two substances are not the same. They are both green and they are both soluble in water. One substance has a melting point of 115 C, is soluble in alcohol, and has density of 1.88 g/cm 3 . The other substance breaks apart at 560 C, is not soluble in alcohol, and has density of 3.60 g/Cm 3. They have different properties. How could the explanation be improved?

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.

Compare and contrast an assemblage and a pollen fingerprint by defying both and giving examples of each from the chapter.

Which subatance is not soluble in water