Brown-headed Cowbirds lay their eggs in other birds' nests, relying upon another species to raise their chicks. Although many species continue to raise the cowbird chicks, some species reject the eggs and offspring
Further, Brown-headed Cowbirds are rare inside large forests. Which of the following probably represents an adaptation in response to this cowbird threat? A) fewer breeding birds of other species rejecting cowbird chicks
B) breeding birds of other species nesting in deep forests
C) breeding birds of other species attracting cowbird adults to their region
D) breeding birds of other species changing to a different type of bird song
B
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Uncontaminated rain water has a pH of 5.6 (slightly acidic) because
A. oxides of sulfur are always present in the atmosphere, even from natural sources. B. upon condensation, water chemically reacts with carbon dioxide forming a weak carbonic acid. C. most water vapor originates by evaporation from the oceans and sea water is acidic. D. droplets of water necessarily condense on atmospheric particulate.
Discuss the different aspects of groundwater storage and movement below the surface. Include the ways in which groundwater comes to the surface on its own, and is drawn to the surface by humans, along with the consequences
What will be an ideal response?
Coastal winds can cause upwelling or downwelling due to which of the following?
A) Eastern intensification B) Ekman transport C) Equatorial upwelling D) Geostrophic current E) Western intensification
In Earth's energy budget, which of the following is responsible for transferring the most energy at any one time?
A) Conduction B) Radiation C) Atmospheric absorption D) Albedo E) Surface absorption