What is your latitude if the north celestial pole appears on your horizon?
A) 90° N
B) 90° S
C) 0°
D) 45° N
C
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Consider the following pairs of points: F: 0°N, 40°W G: 70°N, 60°W 0°N, 20°W 70°N, 40°W H: 20°S, 130°E J: 30°S, 170°E 20°S, 150°E 30°S, 170°W Which pair is closest together?
a. J b. F c. G d. H e. All are the same distance apart.
What is the greenhouse Effect and why is it vital to life here?
What will be an ideal response?
Between A and D?
A. 0 s B. 2 s C. 3 s D. 4 s E. 5 s F. Other (specify)
Which statement about the cosmic microwave background is not true?
A) It is the result of a mixture of radiation from many independent sources, such as stars and galaxies. B) Its spectrum has the shape of an essentially perfect thermal radiation spectrum. C) With the exception of very small variations, it appears essentially the same in all directions in which we look into space. D) It is thought to be radiation that began its journey to our telescopes when the universe was about 380,000 years old.