Glossary B

The Environmental Glossary. Letter B +++ Popular Articles: 'Background extinction', 'Blood Products', 'Biological Integrity'

A Bronchodilator is an Agent that causes an increase in the caliber (diameter) of airways.

A Bronchus is One of the subdivisions of the trachea serving to convey air to and from the lungs.

A Brooding is Early period of growth when supplemental Heat must be provided, due to the birds inability to generate enough

Brownfields are abandoned, idled, or under used industrial and commercial facilities/sites where expansion or redevelopment is complicated by real or perceived Environmental contamination.

A Bt Corn is Field corn that has received a gene transferred from a naturally-occurring soil bacterium called Bacillus thuringiensis. The gene causes the corn plant to produce one of

A Bubble is a system under which existing emissions sources can propose alternate means to comply with a set of emissions limitations; under the bubble concept, sources can control more than required at one emission point where control costs are relatively low in return for a comparable relaxation of controls at a second emission point where costs are higher.

A Bubble Policy is (See: Emissions trading.)

A Bucket Milking System is a system in which the milk coming from the Cow is drawn into a bucket or pail and manually transferred to a collection area or the milk house.

A budget is a formal projection of spending and income for an upcoming period of time, traditionally submitted by the President or Executive for consideration and approval.

A budget reconciliation is legislation making changes to existing law (such as entitlements under Social Security or Medicare) so that it conforms to numbers in the budget resolution.

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