In research methodology, the words proposition and hypothesis are often confused, and are often used with slightly different shades of meaning by different authors. However, the most popular view is that based on the existing literature in a field, a theory is built.
14 Where they live On a global scale, the sea eagle extends across the northern hemisphere from Siberia and Japan to Europe, and south to the Mediterranean and the Middle East. It is replaced by the bald eagle in North America, although it is the sea eagle that has colonised the southwest coast of Greenland.
The Sea of Japan and the Sea of Okhotsk are homes to the snow crab populations that live off of the Eastern coast of Asia in countries including Japan, Russia, North Korea and South Korea. This location is notated by the red circle on the map (left).