Limestone is an example of a(n) ____ rock.
A. igneous
B. steel ore
C. sedimentary
D. metamorphic
E. mantle
Answer: C
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Which of the following statements best describes why holes develop in snow around tree trunks?
A. Snow is a poor absorber of visible light. B. Snow is a poor reflector of visible light. C. Snow is a good absorber of infrared energy. D. Snow is a good emitter of infrared energy.
One currently accepted hypothesis for the formation of eukaryotic cells involves
a. co-habitation of daughter colonies. d. photosynthesis. b. endosymbiosis. e. Wilson Cycles. c. orogenesis.
Without convection, there would be no volcanoes on Earth because
A) all the convecting material spurts out at the surface. B) rising mantle material undergoes decompression melting. C) molten outer-core melts the lower continental crust. D) volcanoes sink down into Earth near down-going convention cells.
Coevolution
What will be an ideal response?