Severe weather forms when certain physical factors are present and interact. A tropical cyclone forms when warm moist air and when combine with which of the following other factors?

A. Cold dense air
B. High pressure system
C. Warm ocean water
D. Wind shear

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.