Jason hangs sheetrock for a local contractor. his job requires him to hang the sheetrock overhead on ceilings. what type of ergonomic-related hazard is jason likely to encounter? a. awkward posture b. contact stress c. static posture d. vibration

Among the following environmental factors, which does not have a long-term impact on the composition of a region's soil? a. kinds of crops grown b. types of fungi present c. topography of the landscape d. variety of species of mammals e. number of freezes occurring annually