Ecotones are the ________
A) interactive behaviors leading to communication
B) sounds that animal communities make in ecosystems
C) studies of specific biomes by ecologists
D) areas between territories of organisms
E) transitional zones between ecosystems
Answer: E
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The supercontinent of ____________________ included all today's major landmasses
Fill in the blank(s) with correct word
Earthquakes occur at all of the following except ________.
A. continental rift valleys B. convergent boundaries between two continental plates C. convergent boundaries between two oceanic plates D. mid-ocean ridges E. Earthquakes occur at all of the above settings
Which of the following emits more radiation?
A) a coal-fired power plant B) a nuclear power plant C) fallout from nuclear tests in the '50s and '60s D) a television set E) a computer monitor
The balance of gravitational and buoyant forces acting on the crust determines its
A) weight. B) vertical position. C) mass. D) plasticity.