Final answer:
Effective reasons in a speech about fencing a park focus on logical evidence like crime statistics, while ineffective ones lack evidence or use fear-based claims without substantiation.
Step-by-step explanation:
In a speech about the pros and cons of building a fence around the neighborhood park, effective reasons are those that clearly articulate the benefits and drawbacks of the fence, supported by evidence that the audience can relate to and find logical. An effective reason for building the fence could be the increased safety for children playing in the park, as demonstrated by local crime statistics showing a rise in park-related incidents. To address potential counterclaims, the speaker could acknowledge concerns about the cost but argue that the long-term safety benefits outweigh the immediate expenses.
An ineffective reason might be rooted in fear-mongering or hyperbolic statements that lack grounding in facts or substantial evidence, such as claiming that without a fence, the park will become overrun by dangerous individuals, without providing any data to substantiate this claim.