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