WATER POLLUTION
Oxygen-depleting substances may be natural materials, such as plant matter (e.g. leaves and grass) as well as man -made chemicals. Other natural and anthropogenic substances may cause turbidity (cloudiness) which blocks light and disrupts plant growth, and clogs the gills (žaunas) of some fish species. Many of the chemical substances are toxic .
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SOLID WASTE MANAGEMENT - LU
www.geo.lu.lvBiogas typically refers to a gas produced by the biological breakdown of organic matter in the absence of oxygen. Organic waste such as dead plant and animal material, animal dung, and kitchen waste can be converted into a gaseous fuel called biogas. Biogas originates from biogenic material and is a type of biofuel.
ENVIRONMENTAL POLLUTION
www.geo.lu.lvWater is considered to be polluted if certain substances or physical factors affect the quality of water and functioning of ecosystems and, as a result, the use of water for particular purposes is restricted. Classification of the water pollution sources: WATER POLLUTION 19 point source pollution non-point source pollution
ENVIRONMENTAL POLICY - LU
www.geo.lu.lvof ideas and knowledge The most important communication functions are: Solving of environmental problems directly depends on the level of society’s knowledge on environmental protection. Environmental education and communication are the main tools of raising public awareness. Communication is an ongoing two-way exchange of
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