aerial | of the air or atmosphere; produced by or found in the air; performed in the air |
atmospheric | relating to or located in the atmosphere |
balanced force | forces are balanced when the forces pushing (or pulling) an object in one direction are the same size as the forces acting in the opposite direction |
cloud cover | the state of the sky when it is covered by clouds |
consumer | people who buy goods or services |
decomposer | an organism, often a bacterium or fungus, that feeds on and breaks down dead plant or animal matter, thus making organic nutrients available to the ecosystem |
deforestation | the state of being clear of trees; the removal of trees |
deposition | act of depositing, especially laying down of matter by natural process |
ecosystem | system formed by the interaction of a community of organisms with their physical environment |
erosion | corrosion; a gradual decline of something |
flood plain | a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding |
flow | the act of flowing or streaming; continuous progression; dominant course of successive events or ideas |
friction | clash in opinion; rubbing against; conflict |
inertia | property of matter by which it tends when at rest to remain so, and when in motion to continue in motion, and in the same straight line or direction |
interdependent | mutually dependent; reliant on one another |
landforms | features that make up the earth's surface, such as a plain, mountain, or valley |
machine | a device consisting of fixed and moving parts that modifies mechanical energy and transmits it in a more useful form |
meander | follow a winding and turning course; move aimlessly and idly without fixed direction |
momentum | product of a body's mass and its velocity; impelling force or strength; impetus |
niche | small concavity; a position particularly well suited to the person who occupies it |
pattern | a model considered worthy of imitation; something regarded as a normative example |
photograph | picture or likeness obtained by photography |
pollutants | foreign substance that makes something dirty, or impure, especially waste from human activities |
producer | someone who manufactures something |
record | be or provide a memorial to a person or an event; a compilation of the known facts regarding something or someone |
recycle | reprocess; use again after processing |
run-off | run away, usually includes taking something or somebody along; run off as waste; leave suddenly and as if in a hurry |
sedimentation | the phenomenon of sediment or gravel accumulating |
simple | having or composed of only one thing, element, or part; not involved or complicated |
slope | be at an angle; incline; gradient |
topographic | concerned with detailed, precise description of a place or region |
tributary | branch that flows into the main stream; tending to bring about; being partly responsible for |
unbalanced | being or thrown out of equilibrium; debits and credits are not equal |
water cycle | the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land |
weathering | erosion; exposure; action of the elements on a rock in altering its color, texture, or composition |
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