Rocks show positive magnetic anomaly when:
a) They record the normal polarity
b) They record reverse polarity
c) They contain unusually high amounts of magnetic minerals
d) They contain unusually low amounts of magnetic minerals
e) they have a certain chemical composition
Answer: a) They record the normal polarity
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What will be an ideal response?
The two key components of central place theory are:
A) range and rank-size rule B) rank-size rule and threshold C) threshold and market share D) market share and range E) range and threshold
Low pressure becomes best developed over the Asian continent in:
a. summer. b. winter. c. fall. d. spring
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Indicate whether the statement is true or false