______ is the idea that continents move freely over Earths surface, changing their positions relative to one another.
What will be an ideal response?
Continental drift
Environmental & Atmospheric Sciences
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The ____________________ is an international agreement to cut greenhouse gas emissions and slow global warming.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
Which of the following make it difficult to develop mathematical models of climate?
A. lack of understanding of the fundamental cause of global warming B. the fact that Earth's climate has varied much over its 4.6 billion-year history C. negative feedback loops D. positive feedback loops
Environmental & Atmospheric Sciences
Polar lows form most often during the
a. ?spring. b. ?summer. c. ?fall. d. ?winter. e. ?spring or fall.
Environmental & Atmospheric Sciences
Nuclear power supplies about _______ of all electricity in Europe
A) three-fourths B) two-thirds C) one-half D) one-third E) one-fifth
Environmental & Atmospheric Sciences