The five major factors contributing to extinction today are ________
A) habitat loss, invasive species, pollution, overexploitation, and climate change
B) catastrophic storms, invasive species, earthquakes and associated tsunamis, pollution, and agriculture
C) air pollution, water pollution, toxic waste, ozone depletion, and agriculture
D) hunting, fishing, habitat destruction, crop production, and the draining of wetlands
A
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A male lion living to age seven in Kenya represents the greatest instrumental value as a(n)
A. sporting trophy. B. tourist attraction. C. exotic pet. D. specimen sold alive to a zoo. E. specimen killed for its skin.
Phytoplankton are
a. plants. d. carnivore-scavengers. b. animals. e. heterotrophs. c. carnivores.
Name the three vector data formats that Esri has developed since the 1980s.
What will be an ideal response?
If you determine the number of days in a year with solar time and sidereal time how would they vary?
A) A year measured in sidereal time would be about one day longer than a year based on solar time. B) A year measured in sidereal time would be about one day shorter than a year based on solar time. C) A year measured in sidereal time would be about 15 minutes different than a solar day, so the difference only accumulates over time. D) They wouldn't; a year is always about 365 1/4 days, and the 1/4 day is taken up with leap years.