Which information can be determined using half-life? • age of material
•type of particle released
•percentage of rock that has aged
•number of radioactive particles left

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

Astate's representation in the u. s. senate is based on a) equal representation. b) the state's population. c) the state's electoral votes. d) the size of their major cities. this independent regulatory agency was created in 1974 to oversee and regulate the financing of political campaigns in the united states. a) warren cthis independent regulatory agency was created in 1974 to oversee and regulate the financing of political campaigns in the united states. a) warren commission (wc) b) federal election commission (fec) c) equal opportunity commission (eoc) d) securities and exchange commission (sec)

Where was oil production at its highest in the 1980s and still remains important to the russian economy? central asia the ural mountains russian siberia the caucasus region