Zinc can be uniformly mixed in differing amounts in copper to an alloy called brass. Brass is an examples of which of the following?
A) compounds
B) elements
C) homogeneous mixtures
D) heterogeneous mixtures
C
Environmental & Atmospheric Sciences
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Central place theory explains the relative size and spacing of urban centers based on
A) markets and consumer behavior. B) government planning. C) cultural differences. D) natural resources. E) urban ecology.
Environmental & Atmospheric Sciences
A raindrop that freezes before reaching the ground is called ____
A) snow B) graupel C) sleet D) glaze
Environmental & Atmospheric Sciences
The discovery of what resource near Butte, Montana caused a huge boom in the region in the 1880s and 1890s?
A) Oil B) Coal C) Precious metals D) Uranium
Environmental & Atmospheric Sciences
Tissues of which of the following organisms would contain the highest concentration of DDT?
a) zooplankton b) osprey c) tuna d) sardines e) swordfish
Environmental & Atmospheric Sciences