Answer quick I need it fast I will give brainless if you get it rite Why did people settle the U cantera Tory in the late 1800s A there were many trading posts in the area. B a railroad was built to connect the United States c gold was discovered in people wanted to find fortune Or D there were missions built to convert native peoples to Christianity

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

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

What is the famous rainforest in costa rica called?