What must occur in order for a metamorphic rock to become a sedimentary rock?
A) weathering
B) solidification
C) melting
D) cooling
Answer: A
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Schools, roads, railroads, hospitals, retail outlets, recreational and cultural opportunities, social services and the entire framework of support services and amenities in a city or region is known as its
A) infrastructure. B) initial advantage. C) spread effects. D) ancillary activities. E) ecological footprint.
A species has evolved an asexual mode of reproduction by having offspring develop from unfertilized eggs. Which of the following will be true of this species' response to natural selection?
A) The species will increase in numbers because genetic variation is increased. B) The species will compensate for loss of genetic variation by hybridizing with other species. C) There will be fewer deaths from natural selection because sexual recombination always leads to extinction. D) There will be less genetic variation from sexual recombination and a risk of not adapting quickly to environmental change. E) There will be more deaths from natural selection because there is no mutation.
Within metropolitan areas in the U.S., the dominant trend in location of manufacturing since the 1970s has been toward the west
Indicate whether the statement is true or false
What is a primary reason an increase in glaciers on land would cause sea level to fall?
A. an increase in snow cover causes the atmosphere to heat up which causes more evaporation B. glaciers depress the land surface, which pulls sea level down with it C. because the temperature of the oceans decreases from cold glacial streams D. glaciers tie up large volumes of water that would otherwise be in the sea