Name and draw one example for each of the following types of tetrahedra: isolated tetrahedra, single

chain tetrahedra, double chain tetrahedra, sheet tetrahedra, and framework tetrahedra What will be an ideal response?


Olivine, pyroxene, amphibole, biotite/muscovite/mica/clay, quartz/feldspar.

Environmental & Atmospheric Sciences

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Possible consequences of excessive groundwater withdrawal include

A. increased permeability of aquifer rocks. B. surface subsidence. C. swelling of aquifer rocks. D. All of the choices are correct.

Environmental & Atmospheric Sciences

Discuss biologists’ definition of “species.” What does this definition imply? Give an example of a species and discuss

binomial species names. What will be an ideal response?

Environmental & Atmospheric Sciences

The permeability of an igneous rock can be increased by

A) sorting. B) cementation. C) fracturing. D) metamorphism.

Environmental & Atmospheric Sciences

Using Figure 15.24 in your textbook, what was the overall elevation change of Mount St. Helens' peak as a result of the 1980 eruption?

A) a decrease of 400 m B) a decrease of 900 m C) it stayed the same D) an increase of 100 m

Environmental & Atmospheric Sciences