Which would be better for creating a surface from which the drops of water would easily roll off and why? A.
PTFE; because of its polar nature
B.
PVA; because it has high surface tension
C.
PVA; because it is insoluble in water
D.
PTFE; because of its nonpolar nature

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.