The branch of geology that studies the cycle of surface and groundwater , as well as its exploration, acquisition and protection. "Hydrology is essential to ensure the survival of populations in arid or very high human and industrial concentration
It is the science that studies the origin and formation of groundwater , forms of deposit , diffusion , movement, speed and reserves, their interaction with soil and rock , its state (liquid, solid and gas ) and properties ( physical , chemical , biological and radioactive ) ; and the conditions that determine the actions of their use , regulation and evacuation
technical and administrative procedures used to identify, prevent and interpret the environmental impacts that will produce a project in its environment should be executed , all in order that the competent authority may accept
Environmental audits or environmental audits seek to quantify the achievements and environmental standing of an organization. In this way they develop a function analogous to financial audits
It is the gaseous envelope , about 2,000 km thick, surrounding the earth . The most important layer is the troposphere because it contains the air we breathe and she meteorological phenomena affecting climate occur
gaseous layer that surrounds a star ; especially around the Earth. "The use of chlorofluorocarbons I destroys the ozone layer of the atmosphere , the amount of water vapor in the atmosphere is closely related to air temperature , for climate it means the average state of the atmosphere at a particular place , defined mainly by temperature and precipitation
It is a systematic, independent and documented process for obtaining audit evidence and evaluating it objectively to determine the extent to which the audit criteria established environmental management system are met by the organization process
It is the technical study of interdisciplinary character, built into the process of environmental impact assessment , it is intended to predict, identify, assess and correct the consequences or environmental effects that certain actions can cause the quality of life of man and his environment
