Earth History and Global Change

GEOL1122   Spring 2015

Answers for Practice Test #3

 

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.