The first person we are aware of who determined the circumference of the Earth using trigonometry and the angle of sunlight at Alexandria, Egypt, was ________

A) Pytheas
B) Eratosthenes
C) Herodotus
D) Seneca
E) Ptolemy


B

Environmental & Atmospheric Sciences

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Volcanism occurs along the following two types of plate boundaries: ____________________ and

____________________. Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

China's rail and road network is most dense in the:

A) north B) south C) east D) west

Environmental & Atmospheric Sciences

"Lake-effect" snow is associated with the ________ air mass

A) cT B) mP C) mT D) cP

Environmental & Atmospheric Sciences

When waves approach a beach at an oblique angle, resulting in a lateral movement of water along the shoreline a ________ may develop.

A. sand dune B. long shore current C. groin D. delta

Environmental & Atmospheric Sciences