Devonian barrier-reef complexes were associated with evaporite deposition in the back reef platform

a. True
b. False


True

Environmental & Atmospheric Sciences

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Which of the following minerals are called framework silicates?

a) amphiboles b) feldspars c) olivines d) pyroxenes e) micas (biotite, muscovite, etc.)

Environmental & Atmospheric Sciences

Dead Zones are caused by ____ that introduce(s) nitrogen and phosphorus into aquatic ecosystems. These nutrients lead to algal blooms and subsequent hypoxic conditions when the _______drop below the level necessary to sustain most animal life. The Gulf of Mexico Dead Zone is caused by this phenomenon.

A. ocean acidification; pH levels B. non-point source runoff; dissolved oxygen levels C. point source polluters; CO2 levels D. volcanic eruptions; pH levels

Environmental & Atmospheric Sciences

The false color imagery of some aerial photographs uses ________ wavelengths

A) x-ray B) microwave C) near infrared D) sonar E) radar

Environmental & Atmospheric Sciences

This figure shows the geologic timescale. Which period listed below would be part of the Mesozoic?

A. Pennsylvanian B. Neogene C. Cambrian D. Mississippian E. Jurassic

Environmental & Atmospheric Sciences