Ranks high among japan's latest exports.

What part did glaciers play in forming the great lakes?

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

In the late 1990s, brazil’s poor people protested about crowded cities land distribution mining permits industrial pollution