Potassium-argon dating is used in geology and archeology to date sedimentary rocks. potassium 40 decays by two different paths: 4040019201kcae−→+(89.3%)4040019 181kare→+(10.7%)the overall half-life of for the decay of potassium-40 is 1.3 x 109 years. estimate the age of sedimentary rocks with an argon 40 to potassium 40 ratio of 0.0102.

Are divergent boundaries responsible for tsunamis?

Which statements describe cultural influences? florida is bordered by water on three sides. french is spoken in parts of louisiana. forests are cleared to provide space for cattle grazing. male children are encouraged to attend the university. the longest river on the continent is located here. birthdays are celebrated on january 1st. per capita income of northern buckland is more than $100,000.

Compare nato and the eu; list 2 similarities contrast nato and the eu; list 2 differences what did you learn about nato and the eu? were you surprised by any of it? 1st answer will get brainliest