Earth History and Global Change
GEOL1122 Spring 2015
1) b 10) c 19) b
2) c 11) a 20) a
3) a 12) c 21) a
4) c 13) b 22) a
5) a 14) a
6) b 15) d
7) c 16) a
8) d 17) a
9) a 18) d
23-24) a) Angular momentum / movement of the Sun and planets
b) Differences in the composition of the inner terrestrial and outer gaseous planets
25) distance light travels in a year
26) The black area between the most distant galaxies indicate the outer limits or boundary of the Universe.
27-29) Low-grade metamorphosed volcanic rocks often with pillow structures and immature sedimentary rocks indicate that the early landmasses were volcanic arcs and islands.
30-31) High-temperature and low pressure high-grade granitic gneisses that only formed in the Archean when crustal temperatures were much higher.
32-33) photosynthesis and photochemical dissociation
34-35) stromatolites; oxygen; carbon dioxide
36) shield
37) Taconic
38-39) Laurasia and Gondwana; Resulted in extreme uplift and formation of modern-day Blue Ridge Mountains.
40) Pangaea
41-42) oxygen, nitrogen, carbon and hydrogen
43) They sexually reproduce allowing for genetic recombination and mutations.
44-45) cyclothems; coal
46-50) See time chart in book.