show more 26wks1dy pregnant. Why is it that in a singleton pregnancy, full term is considered 37wks, however in a twin pregnancy, full term is considered 35wks, & in a triplet pregnancy, full term is considered 31wks? Don't the babies in all pregnancies grow/develop at the same rate?hy is it that in a singleton pregnancy, full term is considered 37wks, however in a twin pregnancy, full term is considered 35wks, & in a triplet pregnancy, full term is considered 31wks?
For orbits around the Earth, see Geocentric orbit. In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a superseded description of the universe with the Earth at the center. Under the geocentric model, the Sun, Moon, stars, and planets all circled Earth.
Confidence votes 75. The Earth revolves (orbits) counter-clockwise around the Sun as viewed from above the North Pole. The Earth rotates (spins) on its axis counter-clockwise as well. The Moon also revolves around the Earth counter-clockwise.