What is the transition region between biogeographic regions?
A. biome
B. ecotone
C. ecosystem
D. biotone
E. biosystem
B
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According to actor-network theory, cell phones have agency
Indicate whether this statement is true or false.
Blood lead levels in children between 1996 and 2012 have
A) increased steadily despite EPA and CDC programs to eliminate lead from the environment. B) continued to decrease as exposure to lead has been reduced. C) remained about the same. D) increased in rural areas but declined in urban areas with heave vehicular traffic.
Biodiversity is a vital part of the natural capital that sustains all life.
Answer the following statement true (T) or false (F)
In which state of matter are the attractive forces between molecules the weakest?
A) solid B) liquid C) gaseous D) None, the attractive forces are the same in all of them.