The orogenic event of the North American Cordillera, which began in the Late Cretaceous and extended into the
Cenozoic, is the ____.
a. Laramide
b. Sevier
c. Nevadan
d. Antler
e. Caledonian
a
Environmental & Atmospheric Sciences
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The most massive form of igneous intrusion is a _______.
a - laccolith b - stock c - batholith d - sill e - none of the above
Environmental & Atmospheric Sciences
How was the geologic time scale developed in the 19th century? What will be an ideal response?
Environmental & Atmospheric Sciences
A sand dune is considered "active" when
A) it is being moved by wind. B) it is being colonized by new plants. C) it has been formed by volcanic activity. D) it is being dissolved into the sea.
Environmental & Atmospheric Sciences
Construction of a reservoir for a hydroelectric plant causes very few environmental and social problems.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences