The Earth has functioned as a life-supporting self-sustaining system for over 8 billion years. Indicate whether the statement is true or false
F
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European cities are different from North American cities largely because European cities
A) have long histories of numerous periods of urban development. B) did not grow according to competitive land markets. C) do not suffer from problems of infrastructure decay and poverty. D) have almost no ethnic congregation and segregation.
In the diagram below, B is the
A) hadal zone.
B) mesopelagic zone.
C) epipelagic zone.
D) benthic zone.
An ecosystem is where ________ interact with each other through the exchange of matter, energy and stimuli
A) plant groups B) plants and animals C) oceanic biota D) animal groups E) rock types
Which statement accurately describes a turbidity current?
A) a fast, dense current of water and sediment that runs down slopes B) the result of mid-ocean trenches spreading at a fast rate C) a phenomenon associated with violent atmospheric storms at sea D) an event that always occurs at river mouths in shallow water, but does not extend into water more than 50 meters (165 feet) deep