A topographic map showing contour lines that are close together on both sides of a river would most likely represent- a) a steep mountain
b) a valley
c) a gradual slope
d) a canyon
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Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

Identify the type of weathering seen in each picture ? chemical weathering mechanical weathering

Canada must balance the economic opportunities offered by its natural resources with the need to maintain links to the united states maintain high tariffs preserve the environment protect its borders