Question

a scientist gave a talk on water pollution to an audience of citizens in a coastal town where the shrimp population was decreasing because of contaminated runoff. which is the most likely reason why the talk was not effective? the speaker used visual aids, such as charts. the speaker kept the talk to a brisk 15 minutes. the speaker used technical language and terms that the audience didnt understand. question 9 1 pts what are the characteristics of an effective hypothesis? a hypothesis is a statement that cannot be either supported or shown to be invalid. a hypothesis is realistic and testable, can be phrased in if - then form, and can potentially be verified or falsified. a hypothesis is only a theory that cant be tested.

Explanation:

For the first question, using technical language that the audience doesn't understand can hinder communication and make the talk ineffective. For the second question, an effective hypothesis is realistic, testable, can be in if - then form, and can be verified or falsified.

Answer:

1. The speaker used technical language and terms that the audience didn't understand.
2. A hypothesis is realistic and testable, can be phrased in if - then form, and can potentially be verified or falsified.