Which of the following is true for the molecule O=C=S?
A) O=C=S is nonpolar because it contains only double bonds.
B) O=C=S is nonpolar because it is linear.
C) O=C=S is polar because it has a bent shape.
D) O=C=S is polar because the polarities of the O=C and C=S do not cancel.
D
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Short grass prairie is being converted to ________ along 1-70
A) savanna B) desert C) mixed-grass prairie D) woodlands E) tall-grass prairie
The youngest event represented in this block diagram is
A. erosion of a canyon by a river. B. formation of the lowest layer. C. retreat of the seas. D. deposition of the top layer.
Paleoclimatologists use direct measurements
Indicate whether the statement is true or false
Use the graphic map scale (in nautical miles [NM]) to estimate the distance from the center of the storm south of Chicago (at 40° N, 90° W) to the east coast of the United States (measure along the 40th parallel).
What will be an ideal response?
________ nautical miles