Wegener's continental drift theory, proposed in 1912, was widely accepted by scientists of the day
a. True
b. False
False
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Using the data in this table, determine the age of the dike.
A) 500
B) 1,000
C) 40,000,000
D) 500,000,000
E) 1,000,000,000
mP air masses
A) are colder than cP masses. B) are drier than cP masses. C) can produce northeasters on the Atlantic Coast of North America. D) rarely affect North America.
Which of the following best describes the Electrolysis Method for desalination?
A) A current is run through positive and negative electrodes in freshwater separated by semipermeable membranes from seawater. B) Large icebergs are brought to coastal waters off countries that need freshwater where they are melted. C) Saltwater is boiled and the water vapor is passed through a cooling condenser, where it condenses as freshwater. D) Seawater is frozen and thawed multiple times, with the salts washed from the ice between each thawing. E) Water on the salty side of a semipermeable membrane is pushed under high pressure through the membrane to the freshwater side.
The angular inclination of the Earth's axis with respect to a line perpendicular to the plane of the ecliptic ________
A) varies through the year B) is 0° C) is 23.5° D) is 66.5° E) is 90°