A metamorphic rock with gneissic texture ________.

A. has flattened, elongated pebbles
B. has very contorted layers
C. is very shiny
D. has distinct light and dark layers
E. splits easily into nearly flat and parallel planes


Answer: D

Environmental & Atmospheric Sciences

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Which of the following is/are subcycles within the geologic cycle?

A) hydrologic cycle only B) the rock cycle only C) the tectonic cycle only D) the rock cycle, tectonic cycle, and hydrologic cycle E) the rock cycle and the tectonic cycle

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Russian population is densest to the ________ of the Ural Mountains

A) north B) east C) west D) south

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What region borders the Sahara Desert, has highly variable rainfall and a human population dependent on pastoralism?

A) West Africa B) East Africa C) Horn of Africa D) Central Africa E) Sahel

Environmental & Atmospheric Sciences