Zetta- Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning "seven". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, "hepta", was informally introduced a few years before the promulgation of zetta. It was formed from the Greek (), also meaning "seven". "Hepta" never received official sanction and is obsolete. Zeta (), although
Tera, Kutch is the main occupation of Tera's inhabitants, crafts such as Bandhani, block printing, mirror work and "Jats" embroidery also provide main revenue for the villagers. The town also derives income from visiting tourists and Jain pilgrims. As many as 50,000 Jain pilgrims visit Tera every year to see the Shamlaji Parshwanathji Jain Derasar. Tera was the first Heritage Village declared by the government of India. Tera and its environs are furthermore noted for a variety of wildlife, including chinkaras, blue bulls, wild boars, hyenas, great Indian bustards, peacocks, black partridges, desert foxes, Indian wolves and caracals. Tera lies on State