Photosynthesis involves
A) important reactions within the stems and roots of plants.
B) the use of sunlight to produce food sugars and oxygen to drive biological processes.
C) a process known as respiration.
D) the release of stored carbon dioxide in a process using sunlight.
B
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What does this welded texture indicate about the formation of this rock?
A. The rock solidified at great depth. B. The magma formed some crystals before rising closer to the surface and solidifying. C. It formed from an explosive pyroclastic eruption. D. The magma had abundant dissolved gas.
A thin, horizontal layer of intrusive igneous rock lying between two beds of sedimentary rock would be classified as a:
a. dike b. sill c. laccolith d. batholith
Magma is currently forming beneath the Rockies
Indicate whether the statement is true or false
New lithosphere is created at
A. transform faults. B. convergent plate boundaries. C. divergent plate boundaries. D. subduction zones.