The blue jay is a passerine bird in the family Corvidae, native to North America. It is resident through most of eastern and central United States, although western populations may be migratory. Resident populations are also found in Newfoundland, Canada, while breeding populations can be found in southern Canada. It breeds in both deciduous and coniferous forests, and is common near and in residential areas. It is predominantly blue with a white chest and underparts, and a blue crest. It has a
temperature gradient. At sea, a temperature gradient is the change of temperature with depth; a positive gradient is a temperature increase with an increase in depth, and a negative gradient is a temperature decrease with an increase in depth. Thesaurus AntonymsRelated WordsSynonymsLegend:
Gradient Figure 4 shows two rivers that have very different gradients. Gradient is the measure of the change in elevation over a certain distance. The water in a stream or river that has a high gradient moves very rapidly. This rapid water flow gives the stream or river a lot of energy to erode rock and soil. A river or stream that has a low gradient has less energy for erosion.