If there were 400g of U238 in a sample, how many grams would be left in 18 billion years
1-200
2-100
3-50
4-25

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

d

explanation:

it is reliable if two scientists recorded it