True mammals evolved from ____________________, which were the most mammal-like of group of
____________________, which were mammal-like reptiles. Fill in the blank(s) with the appropriate word(s).
cynodonts; therapsids
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When radiometric dating is applied to metamorphic rocks, the date obtained is:
a. the date of final crystallization of the magma. b. the date at which metamorphism began. c. a minimum age for the parent rock. d. the date at which metamorphism ceased. e. a maximum age for the daughter rock.
The tallest mountain ranges are created at transform boundaries.?
a. True b. False
Which of the following statements is NOT true about clastic sedimentary rocks?
A. The amount of pore space decreases as a sand is compacted into sandstone. B. To be called a sandstone, quartz must make up more than 95 percent of the grains. C. The natural cement that holds sedimentary rocks together is composed of dissolved minerals that precipitate. D. Clasts in a conglomerate or breccias can be different rock types or can be all the same rock type.
A good example of a drowned coast is the:
a. California coast b. Florida coast c. Norwegian coast d. mid-Atlantic coast