Which of the following can't serve as a firebreak a) a river
b) a ditch
c) a shelter belt
d) a road

What is an example of a line segment

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

When you start from a given set of rules and conditions and determine what must be true you are using blank reasoning