The deviation of time zones covering 15 degrees of longitude is due to _____.
a. organizing according to latitude.
b. significant adjustments by individual countries
c. covering 15 degrees of longitude
d. covering 25 hours around the world
e. the 2 hour difference from adjustment time zones
b. significant adjustments by individual countries
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____ are transitional environments because they ____
a. Sand dunes; involve marine and continental processes b. Barrier islands; involve marine and continental processes c. Submarine fans; involve marine and continental processes d. Glaciers; straddle the boundary between the mountains and the plains e. Alluvial fans; straddle the boundary between the mountains and the plains
What mineral test is shown in this photograph? 
A. streak B. specific gravity C. magnetism D. scratch test E. effervescence
How old is Earth?
a. 4.6 billion years old b. 4.6 million years old c. 460 million years old d. 4600 years old e. 46 billion years old
Which group of silicate minerals has two planes of cleavage that are oriented at approximately 60° and 120°?
A) Pyroxenes B) Potassium Feldspars C) Amphiboles D) Galena