The Northwest physiographic subregion can be described as ________. It is an extension of the ________
Fill in the blank(s) with correct word
mountains / Rocky Mountains - Pacific coastal mountains
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If you were visiting Germany in 1800, what would you do to convince a geology student that not all rocks formed by precipitating from water?
What will be an ideal response?
For many geologists an active fault is one along which movement has taken place in the last ________ years.
A. 51,000 B. 1 million C. 11,000 D. 500,000 E. 15,000
The average albedo of Earth's surface is about ________
A) 3% B) 30% C) 50% D) 67% E) 90%
The planets
A. were ejected from the sun as molten matter early in its history. B. formed from the same cloud of gas and dust as the sun. C. formed billions of years after the sun. D. formed in different places in space and were drawn to the sun by gravity.