Discussion Question: How would a physics problem, especially one involving many forces, be more difficult if we didn't use free body diagrams?
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in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2