Igneous rocks with a texture that is so fine-grained that the crystals are too small to see are ____.
A)aphanitic
B)porphyritic
C)glassy
D)phaneritic
E)pyroclastic
Question 2Organisms are composed of simple monomers.
Indicate whether the statement is true or false
Question 3Mass wasting can be an important source of sediment carried in a stream.
Indicate whether the statement is true or false
Question 4Igneous rocks that most likely have a two-stage intrusive-extrusive origin have a(n) ____ texture.
A)aphanitic
B)porphyritic
C)glassy
D)phaneritic
E)pyroclastic
Question 5Modern eukaryotic cells that contain organelles and mitochondria support the theory of endosymbiosis.
Indicate whether the statement is true or false
Question 6Most of a stream's kinetic energy is involved in eroding and transporting sediment.
Indicate whether the statement is true or false
Question 7Large crystals found in a fine-grained groundmass can indicate a(n) ____.
A)origin from a magma with an early intrusive phase followed by an extrusive phase
B)origin from a magma with an early extrusive phase followed by an intrusive phase
C)rock of mixed volcanic-plutonic origin
D)intrusive slow cooling process
E)origin from a magma with an early intrusive cooling phase followed by an extrusive cooling phase
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