Important fossils and bones of several hominid species have been found in the Great Rift Valley.

a. true
b. false


a. true

Environmental & Atmospheric Sciences

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Animals which eat plants are also known as ________

A) predators B) carnivores C) secondary consumers D) herbivores E) final consumers

Environmental & Atmospheric Sciences

Ultrasonic sound waves have relatively

A. low frequencies. B. long wavelengths. C. both of these D. none of the above

Environmental & Atmospheric Sciences

The _______________ is charged with "maintenance of international peace and security."

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

Environmental & Atmospheric Sciences

The roots of the Vietnam conflict began with the 1858 invasion of Vietnam by which country?

a. United States b. Great Britain c. France d. Portugal e. China

Environmental & Atmospheric Sciences