What is the largest biogeochemical cycle?
a. carbon cycle
b. nitrogen cycle
c. phosphorus cycle
d. silicon cycle
e. ferrous cycle
a
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During the Late Paleozoic, the southern part of Pangaea was distinguished by ____ climate conditions
a. arid b. tropical c. arctic d. temperate e. tundra
What is the principal usage of the tropical lowland hardwood forests?
A. fuelwood and charcoal B. hardwood logs for lumber C. construction lumber and pulp for paper D. furniture and railroad ties
Where are temperatures highest in an urban heat island?
A) suburban residential B) urban residential C) downtown D) parks E) commercial areas
Why are genetic diseases more likely in the offspring of closely related parents than in the general population?
A) There is a greater likelihood that one parent carries a dominant gene for a disease. B) There is a greater likelihood that both parents carry a dominant gene for a disease. C) There is a greater likelihood that one parent carries a recessive gene for a disease. D) There is a greater likelihood that both parents carry a recessive gene for a disease.