Plate tectonics emerged as a science in the 1960s, and was based on the earlier hypothesis of ________.

A. planetesimals
B. evolution
C. nebular formation
D. continental drift
E. electromagnetism


Answer: D

Environmental & Atmospheric Sciences

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Compressive forces cause the crust to

A. buckle and fold, thereby lengthening the crustal surface. B. stretch and pull, thereby shortening the crustal surface. C. buckle and fold, thereby shortening the crustal surface. D. break and fracture, thereby lengthening the crustal surface.

Environmental & Atmospheric Sciences

Homologous structures probably indicate descent with modifications from a common ancestor

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Polychaetes are the most successful worm phyla, being found in terrestrial, aquatic, and marine environments

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Dangerous rapid currents that can pull swimmers out to sea are called ____________________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences