What was the cause of flooding in the 1993 upper Mississippi River flood?
A) Heavy snowmelt in Canada sent large volumes of water down the river in the spring.
B) A dam failed because it had been built in a risky place near a fault.
C) Persistent thunderstorms caused large amounts of rainfall over a several-state region.
D) Winter produced rain that melted snow that was on the ground.
C) Persistent thunderstorms caused large amounts of rainfall over a several-state region.
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All of the following statements are indications of climate change except one. Which one?
A) temperature increases in the Northern Hemisphere B) increased precipitation in in some parts of the world C) declining mountain glaciers and shrinking Arctic sea ice D) rising sea level E) deforestation in the world's tropical regions
What does the Richter Magnitude Scale measure, and why are scales of this type used more frequently
than intensity scales? What will be an ideal response?
Which of the following best matches the description?Small organism that has a short life span and produces a large number of offspring.
A. r-strategist B. age distribution C. death phase D. carrying capacity E. density-independent factor F. stable equilibrium phase G. emigration H. environmental resistance I. K-strategist J. biotic potential K. immigration L. density-dependent limiting factor M. dispersal N. exponential growth phase O. population density P. lag phase
Which of the following best describes the vegetation of the tropical rain forest biome?
A) Perennial herbaceous B) Broadleaf evergreen C) Sclerophyllous D) Seasonal deciduous