53 ment of Syllabus
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Atomic # =
Atomic Mass
# of Protons
# of Neutrons
# of Electrons
Atomic # =
Atomic Mass
# of Protons
# of Neutrons =
# of Electrons

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

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:

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the answers are

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