Answer:
Cause-effect
Explanation:
The cause/effect theory is the process that describes how something happens, the cause(s) and its effect analyzes why something happens, links situations and events together.
The cause and effect pattern of organization leads to a balanced analysis, by stating all the possible causes and the associated effects.
Melanie presenting an informative speech where she wants to talk about impact that pollution has had on orca whales. Deciding to first talk about pollution in the oceans (cause) and also going ahead to talk about what this(the pollution) has done to orca whales (effect), will make the speech detailed, linking the situations together.
