How does the us differ from Canada?

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

Which of these is the sound of fish slapping against human flesh?

The english language is part of which language family? a. alatic b. dravidan c. indo-european d. khoisan