Definir rosa de los vientos.

Ahill is made of rock particles of different sizes. which of these agents of erosion probably caused the hill to form?

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

This country is the world's leading producer of cork?