It is best to say that the protection to properties offered by sea walls along coas
a decreases the present and future risk to human properties
b. increases both the present and future risk to human properties
C. decreases the present but increases the future risk
d increases the present but decreases the future risk

3. draw a topographic map that displays the following features: (4 points each) a. the contour interval is 20 meters. b. the point of lowest elevation is 960 meters. c. the point of highest elevation is 990meters. d. there is at least one sinkhole or depression, at any elevation. e. there is at least one steep slope and one gentle slope.