Korea was separated by armed conflict following World War II and reunited after the Paris Peace Accords. Please select the best answer from the choices provided.

T
F

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

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.

What is the approximate chemical composition of the solar nebula?