Spherical geometry other geometric concepts are defined as in plane geometry, but with straight lines replaced by great circles. Thus, in spherical geometry, angles are defined between great circles, resulting in a spherical trigonometry that differs from ordinary trigonometry in many respects; for example, the sum of the interior angles of a triangle exceeds 180 degrees. Spherical geometry is "not" elliptic geometry, but is rather a "subset" of elliptic geometry. For example, it shares with that geometry the property that a line has no parallels through a given point. Contrast this with Euclidean geometry, in which a line has one parallel through
China's Circular Economy Germany and Japan, where they have shaped many of China's policies revolving around the three R's of re-use, reduce, recycle. Japan's Basic "Law for Establishing Promoting the Creation of a Recycling-Oriented Society" and Germany's "Closed Substance Cycle and Waste Management Act" has been the greatest influence on China's circular economy strategies. Japan has been successful influencing whole industries into adopting sustainability strategies, where they view recycling measures as a competitive advantage rather than a liability. China has learned from this by making EIP's and industry-wide recycling initiatives as core functions of their circular economy. Germany has been effective in promoting