1 If the ball hits the ceiling it is called out of bounds in international volleyball. 2  Some leagues allow play continue after ball hits the ceiling. 3  If a player commits a fault or violation when playing the ball. 4  To read more details about the faults and violations, go to basic volleyball rules pages.
Environmental impacts. Hydropower is emission-free, renewable energy which does not cause any emissions into the air, water, or soil. The construction of hydropower plants changes waterways and their natural conditions.The main environmental impact during production is caused by the regulation of the waterways.Fortum actively moderates this environmental impact.ortum moderates the environmental impact in many ways. Fortum actively moderates the environmental impact of hydropower production in areas affected by the power economy. The impact on the fishing industry is reduced by stocking fish and restoring habitats.
Despite its vast potential, there are a variety of environmental impacts associated with wind power generation that should be recognized and mitigated. For more on wind power technologies, see How Wind Energy Works. For more on the benefits of wind power and other renewable energy technologies, see Benefits of Renewable Energy Use. Land Use The land use impact of wind power facilities varies substantially depending on the site: wind turbines placed in flat areas typically use more land than those located in hilly areas.