Earth Science - January 2010

46 By which process was the quartzite formed?

(1) deposition of clastic sediment     (3) metamorphism of sandstone
(2) precipitation from seawater        (4) cementation of shells

Base your answers to questions 47 through 50 on the diagram below, which shows Earth and the Moon in relation to the Sun. Positions A, B, C, and D show the Moon at specific locations in its orbit. Point X is a location on Earth’s surface.

Click on image to enlarge

47 What is the time of day at point X?

(1) 6 a.m     . (3) 6 p.m.
(2) noon        (4) midnight

48 On what date does the line separating day and night pass through Earth’s North Pole, as shown in this diagram?

(1) December 21     (3) March 21
(2) January 21         (4) June 21

49 A solar eclipse might occur when the Moon is at location

(1) A      (3) C
(2) B      (4) D

50 Which phase of the Moon would be observed on Earth when the Moon is at location A?

For sections B2 & C click on PDF version

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