Earth's magnetic poles appear to ________.
A. switch positions every 100 years
B. quickly move over large distances yearly
C. never move
D. slowly move around the geographic poles over decades
Answer: D
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What will be an ideal response?
This is used as a guide to planting and determining the approximate date for harvesting crops:
A. growing degree-days B. heating degree-days C. cooling degree-days D. harvest degree-index
Dry summers and winter precipitation maxima characterize this small biome is located in 5 disparate locations, typically on the west coast of continents between 30° and 40° latitude
A) Mediterranean shrubland
B) Midlatitude grassland
C) Midlatitude broadleaf and mixed forest
D) Tropical savanna
Gasoline can be separated from oil through the process of ____.
A. refining B. fracking C. gasification D. oil proving E. liquefaction