The 3.0 Saturn engine is an interference engine. This means that if the timing belt comes off, breaks, or gets out of time, the pistons will contact the valves and bend the valves. This is the reason your engine has no compression. The cylinder heads will need to come off and the bent valves will need to be replaced.
12 Main Types of Agriculture. 1) Shifting Cultivation (rotating crops) 2) Intensive Pastoral Farming (focused on grazing animals) 3) Subsistence Cultivation (eeking out a living, often on inhospitable land) 4) Commercial Cultivation (usually focused on cash crops, such as cotton, palm oil - and poppy for heroine)
Written By: Subsistence farming, form of farming in which nearly all of the crops or livestock raised are used to maintain the farmer and the farmerâs family, leaving little, if any, surplus for sale or trade. Preindustrial agricultural peoples throughout the world have traditionally practiced subsistence farming. Some of these peoples moved from site to site as they exhausted the soil at each location. As urban centres grew, agricultural production became more specialized and commercial farming developed, with farmers producing a sizable surplus of certain crops, which they traded for manufactured goods or sold for cash.