Describe the Mountains and Basins region of Texas. What type of climate does this region have? What type of natural resources are located in this region? What type of industry is common in this region?

What group has historically made up the largest portion of immigrants in mexico?

While most people who lived in ancient egypt and the middle east avoided settling in nearby deserts, those regions protected them from their enemies. why do you think this was true?

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