Discuss the human lineage What will be an ideal response?
The earliest member of our own genus was Homo habilis. Homo erectus developed later and
was more broad-ranging, being found outside of Africa. H. erectus made stone tools, used
fire, and lived in caves. Homo sapiens apparently evolved from H. erectus.
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Which zone is the deepest seabed zone?
A) Bathyal zone B) Hadal zone C) Littoral zone D) Abyssal zone
Which numbered site is likely to have exposure of crystalline rocks?
A. 1, the continental shield B. 2, the continental platform C. 3, a basin in the continent D. 4, a continental shelf E. 5, a deep sediment-filled basin next to the continent
Most large earthquakes on subduction zones occur because of
A. warming of cold oceanic crust. B. melting of the mantle. C. melting of cold oceanic crust. D. energy released in erupting volcanoes. E. faulting along the plate boundary.
Structure zones in continents mark old sites of mantle plumes.
a. true b. false