The _______ ______ an extensive region making up much of northern and central Canada underlain by Precambrian (up to 3 billion years old) rocks
Fill in the blank(s) with correct word
Canadian Shield
Environmental & Atmospheric Sciences
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The Pacific coast is commonly called a(n) ____
A) ?active margin B) ?passive margin C) ?margin that gradually transitions from a passive to an active margin D) ?margin that continually changes from being a passive margin to an active margin and then back to passive margin
Environmental & Atmospheric Sciences
Which sub-region of Russia has the mildest climate?
a. Caucasus b. Slavic c. Siberian d. Baltic
Environmental & Atmospheric Sciences
The period of the second hand on a clock is
A. 60 s. B. 1/60 s. C. 3600 s. D. 12 h. E. 1 s.
Environmental & Atmospheric Sciences
According to the Köppen system of classifying climates, which of the following climate types normally has the highest afternoon temperatures during the summer?
A. climate A B. climate B C. climate C D. climate D
Environmental & Atmospheric Sciences