The most effective choice for a speech is usually the one that could aroused the emotion of your audiences.
So it would be something like : the history of democracy
With this topic, you could remind the audience on the fight that your ancestors have to pass through to achieve the current greatness and conditions
hope this helps
Answer:
D) Room temperature
Explanation:
For the experiment to work and have good reliable results there should only be one variable. In this case, the variable is the noise level, and the different room temperatures would influence the experiment's results.
Answer:
National farm income fell from $16.9 billion in 1919 to only $5.3 billion in 1932
Cause avoidable accidents and become careless
B because it’s only one person