Which of the following would be the best example of voluntary migration? A.
Religious persecution
B.
Better education
C.
Famine
D.
Ethnic cleansing

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

How many square miles is the big island of hawaii

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.