What arrangement of atoms does this diagram illustrate? 
A. octahedron
B. tetrahedron
C. cubic
D. dodecahedron
Answer: C
Environmental & Atmospheric Sciences
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How did the zone of cloud cover over the equatorial parts of the Atlantic Ocean change from January to July?
A) It progressively disappeared B) It shifted to the south C) It shifted to the north D) It did not change in position or strength
Environmental & Atmospheric Sciences
Gas bubbles decrease in number and volume as magma keeps rising upward to lower pressures, helping to propel magma upward through fractures or pipes toward an eruption.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences
Which type of glass is normally used in automobile windshields?
a. annealed b. laminated c. tempered d. reinforced
Environmental & Atmospheric Sciences
A syncline fold is convex up.
Answer the following statement(s) true (T) or false (F)
Environmental & Atmospheric Sciences