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| Terms for subject Environment (21507 entries) |
| microscopía | microscopy (The interpretative application of microscope magnification to the study of materials that cannot be properly seen by the unaided eye) | |
| microtamiz | microstrainer | |
| microtamiz de bandas | band microscreen | |
| migración | animal migration (Movements that particular animals carry out regularly often between breeding places and winter feeding grounds) | |
| migración (animal) | animal migration | |
| migración | migration (in general) | |
| migración contaminante | pollutant migration (Uncontrolled movement, caused by percolation or other processes, of liquid or gaseous polluting materials from an original source area into other parts of an ecosystem) | |
| migración contaminante | pollutant migration | |
| migración estacional | seasonal migration (The periodic movement of a population from one region or climate to another in accordance with the yearly cycle of weather and temperature changes) | |
| migración interior | internal migration (A population shift occurring within national or territorial boundaries, often characterized by persons seeking labor opportunities in more advantageous areas) | |
| migraciones humanas | human migration (The permanent or semipermanent change of a person's place of residence) | |
| mina | mine (An opening or excavation in the earth for extracting minerals) | |
| mina con avenidas de agua | mine susceptible to water inrushes | |
| mina de sal | salt dome | |
| mina sellada e inacesible | sealed, inaccessible repository | |
| minas de carbón | coal mining (The technical and mechanical job of removing coal from the earth and preparing it for market) | |
| minas de carbón | coal mining | |
| mineral | ore (A mineral or mineral aggregate, more or less mixed with gangue, that can be worked and treated at a profit) | |
| mineral del suelo | soil mineral | |
| mineral radiactivo | radioactive mineral |