Amazon Standard Identification Number. ASIN redirects here. For other uses, see Asin (disambiguation). The Amazon Standard Identification Number (ASIN) is a 10-character alphanumeric unique identifier assigned by Amazon.com and its partners for product identification within the Amazon organization.
GEOGRAPHY (study) Synonyms include earth science, geopolitics, physiography, and topography. GEOGRAPHY (physical) Synonyms include topography, terrain, or landforms. GEOGRAPHY (study) Synonyms include earth science, geopolitics, physiography, and topography.
Geography of the Hemisphere. THE WORD hemisphere means âhalf a sphere.â In geography, the term refers to half the Earth, and the enclosing boundary line of a hemisphere is a great circle. A space traveler viewing the Earth from a great distance will see only half the earth, a hemispheric perspective.