<span>The most unpredictable presentation aid a speaker could use is a person or an animal.
Presentation aids are things other than the expressions of a speech that are utilized to support the goal of the speaker. Specifically, they can be visual aids, sound aids or other supporting innovation.</span><span /><span>
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American westward expansion in the 19th and 20th centuries influenced the regional and ethnic identities of the United States
C.Settlers lived a nomadic and violent lifestyle as they fought to protect their caravans and searched for isolated places to create new communities
Explanation:
American westward expansion in the 19th and 20th centuries is one of the phenomenons the hurt the ethnic culture native to the Americas the most out of all.
The natives had survived until then by living in the west in their own cultures which were now being invaded by the increasingly violent white settlers who were trying to grab away their lands where they as nomads had lived for centuries.
The influence on the regional and ethnic identities was that there was a cleansing of the native population by the white settlers.
1: The Zimmerman Telegram, in which Germany offered Mexico "substantial aid" in regaining Mexican territory lost to USA in the Mexican-American War (1846-48) if they joined the war on Germany's side and attacked USA.
<span>2: Unrestricted submarine warfare by the Germans.This was sinking neutral US ships and killing US merchant seamen.Further, it was preventing legitimate imports and exports to and from the USA, thus harming the economy.</span>
In the agriculture industry, Brazil has been the number one producer of coffee for 150 years and is the largest producer of beef cattle in the world. It is also the biggest producer of tropical fruits and sugarcane. Hope this helps
