4. a rock composed of cemented, rounded pebbles is a
a. porphyry
b. shale
c. breccia<...
Biology, 15.12.2019 04:31 kody2lewiskl
4. a rock composed of cemented, rounded pebbles is a
a. porphyry
b. shale
c. breccia
d. conglomerate
5. remains or traces of ancient plants and animals that are preserved in rock are called
a. elements
c. fossils
b. concretions
d. geodes
6. breccia belongs to which of the following groups?
a. foliated metamorphic
b. unfoliated metamorphic
c. clastic sedimentary
d. chemical sedimentary
7. two broad categories of sediments are
a. igneous and metamorphic
b. igneous and clastic
c. clastic and nonclastic
d. sedimentary and metamorphic
8. clastic sedimentary rocks are identified mostly from
a. the particle size
b. the color
c. the type of foliation
d. heat and pressure
9. which of these rocks is made of shells and skeletons of marine organisms?
a. sandstone
c. rock gypsum
b. coquina
d. mudstone
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