What feature would easily distinguish schist and gneiss from quartzite and marble?
What will be an ideal response?
Both schist and gneiss have foliated textures, whereas both quartzite and marble are nonfoliated.
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Commercial forests have the same biodiversity as old-growth forests
Indicate whether the statement is true or false
Which of the following are pulsating stars used to determine the dimensions of the Universe?
A. red dwarfs B. supernovas C. cepheid Variables
On June 21, an observer would see:
a. long days and short nights in the Southern Hemisphere. b. long days and short nights in the Northern Hemisphere. c. day and night of equal length. d. none of these
The building block of the silicate minerals is called the ____________
a) silicon-oxygen tetrahedron b) aluminum-silicon tetrahedron c) silicon-oxygen octahedron d) aluminum-silicon octahedron e) none of these