Which of the following is a difficulty associated with environmental protection?
a. cost
b. unpredictability
sustainability
d. all of the above

pie chart because it is in percents ( % )

fe 55.85 g/mol and h2o 18.02 g/mol.

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph