3 087 mots et expressions · 21 thèmes
a condition in which excess water fills soil spaces and limits the air available to plant roots
fibrous material produced by separating wood fibers and used mainly to make paper and related products
a permeable layer of rock or sediment that stores and transmits enough groundwater to supply wells or springs
the movement of continents across Earth's surface over geological time
a landform built from sediment deposited where a river enters a lake, sea, or other standing body of water
a partly enclosed coastal body of water where river water mixes with seawater
the pattern of places across which a feature, organism, population, or activity is found
one half of Earth, such as the northern or southern half divided by the equator
a vast, continuous mass of glacial ice covering a large area of land
rock formed when magma or lava cools and becomes solid
to enter soil or other ground material through the surface
a position north or south of the equator expressed as an angle in degrees
a particular area or neighborhood considered as a place where something occurs or is located
a position east or west of the prime meridian expressed as an angle in degrees
molten or partly molten rock, often containing crystals and dissolved gases, beneath Earth's surface
the thick layer of hot, mostly solid rock between Earth's crust and core, capable of slow flow over geological time
the relationship between a distance shown on a map and the corresponding distance on the ground
rock whose minerals or texture have changed through heat, pressure or fluids while remaining essentially solid
a decrease in seawater pH, especially as the ocean absorbs carbon dioxide and its chemistry changes
ground, such as soil or rock, that remains at or below zero degrees Celsius for at least two consecutive years
the zone where two tectonic plates meet and move relative to one another
a large area of relatively level land that stands above the surrounding land
to replenish groundwater by adding water to an aquifer or saturated zone
to have the front of a glacier move backward because ice is lost faster than it is supplied there
the connected processes through which rocks form, break down and change among different types over geological time
the concentration of dissolved salts in water
rock formed from accumulated sediment, mineral precipitation, or the remains of organisms
a large slab of Earth's rigid outer layer, including crust and uppermost mantle, that moves relative to other slabs
the shape and arrangement of the surface features of an area, including its hills, valleys, and slopes
the movement of deeper water toward the ocean surface, often bringing cooler, nutrient-rich water upward
one half of Earth, such as the northern or southern half divided by the equator
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