The most common group of minerals in Earth's crust are the ________

A) oxides
B) carbonates
C) native metals
D) silicates


Answer: C

Environmental & Atmospheric Sciences

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Visible satellite images [INSERT FIGURE 6-35A. NO CAPTION]

A) are useful for identifying cloud-covered areas B) are useful for distinguishing between low-, medium- and high-level clouds C) are useful for observing clouds during both day and night

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Find the hill in Sec. 8, T6S, R2E. This hill covers approximately how many acres?

The question is based on Map T-17 in the back of the Lab Manual, showing a portion of the “Antelope Peak, Arizona,” quadrangle (scale 1:62,500; contour interval 25 feet); a portion of this map is reproduced in black-and-white in Figure 31-3 as well. The map’s marginal information is visible along the left and top margins (“T.5S,” “R.2E,” etc.). __________ acres

Environmental & Atmospheric Sciences

Tropical coral reefs typically form in areas of high wave energy

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

There is no evidence in the geologic record that multi-celled organisms of any kind existed prior to the Cambrian

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences