Beach Pool 



(1) Barrier beach pool is a shallow lagoon formed inland 

 from Barrier beaches. (2) Sand spit beach pool is a shallow 

 lagoon generally sigmoid-shaped inland from a sand Spit, 

 characteristically on the protected side of a headland. 



Beaufort Scale 



A series of numbers devised by Francis Beaufort in 1805 

 to designate approximate wind velocities ranging from for 

 a calm to 12 for a hurricane with wind velocity in excess of 

 75 miles per hour. 



Beckmann Thermometer 



A thermometer graduated to 0.01 degree and covering a 

 scale of 6 to 7 degrees. 



Bed Load 



Soil, rocks, and other debris rolled along the bottom of 

 a stream by moving water, in contrast to "silt load" which 

 is carried in suspension. 



Bedrock 



The solid rock underlying soils or other surface materials. 



Behaviour, Appetitive 



A reaction of an animal that aids in the satisfaction of 

 its needs. 



Behaviour, Displacement 



The reaction of an animal that is not pertinent to the 

 stimulus, as when it cannot respond appropriately or when 

 two or more incompatible drives are present. 



Behaviour, Instinctive 



A fixed pattern of action that is inherited. 



Belt 



A comparatively narrow area or strip of vegetation with 

 distinctive characteristics from adjoining areas or vegetation. 



cf . Zone. 



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