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In general , progress in this area is affected heavily by the same factors affecting progress in evaluating alternatives : progress in setting measurable performance objectives and improving the reliability and completeness of risk assessments . The base natural languages included English because it is very widely spoken , Chinese ( Mandarin ) for the same reason , and Latin as a proxy for the other European languages , all of which have been influenced heavily by Latin . The lake trout or Mpasa ( Opsaridium microlepis ) from Lake Malawi is fished heavily during its spawning runs upriver but has suffered a 50 % decline in the past ten years , due to siltation of its spawning grounds and reduced flows due to water abstraction . It is used heavily for instruction in remote sensing , synoptic , dynamic and tropical meteorology courses . Good language skills are weighed heavily by hiring managers and are a prerequisite for just about any managerial job overseas .