Suppose that you are a geologist trying to determine the relative age of several rock layers. Unfortunately there are so many unconformities in the area that it is difficult to rely on the principle of superposition. How might you figure out this puzzle?

The world trade organization (wto), which was formed in 1995, trades without discrimination. which of these best describes what this principle means? all its member countries charge the same prices for basic commodities such as wheat and lumber. b) all its member countries do not trade with countries which had discriminatory racial policies. c) all its member countries trade only with countries that sign the wto agreement. d) all its member countries open their markets equally to all member nations. answer is d