According to the chart, the reason for the increase in trade between the us and mexico was the start of what program? a) a change in presidential administrations b) a change in international trade policy c) nato d) wto

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

The two types of plains are coastal plains and lowland plains

Weathering is an example of an external force of change. question 2 options: true false