1 In the upper course, the river erodes the landscape and bends to avoid hard rock, creating interlocking spurs. 2  Rapids and waterfalls can form when it runs over alternating layers of hard and soft rock. 3  This is because soft rock erodes more easily than hard rock. In the upper course, the river erodes the landscape and bends to avoid hard rock, creating interlocking spurs. 2  Rapids and waterfalls can form when it runs over alternating layers of hard and soft rock. 3  This is because soft rock erodes more easily than hard rock.
OSHA defines in-patient hospitalization as a formal admission to the in-patient service of a hospital or clinic for care or treatment. An overnight stay does not determine whether the case is reportable or not.
*Hospital confinement is defined as a covered personâs confinement to a bed in a hospital for which a room charge is made. confinement must be on the advice of a physician and medically necessary. operated by or for the United States government. Confinement must start within 30 days of the accident.