The Columbian Exchange has brought new species to Europe. This includes new plant species, such as tomatoes and potatoes which have help combat hunger in Europe. This can be seen for example through the fact that when potato has a blight it caused the great famine in Ireland. However, the Columbian Exchange was not only positive for Europe as it also introduced sicknesses such as syphilis.
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Explanation:
The Marshall Plan was a post WWII bailout program initiated by the USA, aimed to economically revive nations and to reduce communist influence within the countries it supported. The USSR refused to be included for differing political views and opted to create a similar program of their own to aid in post war economic recovery. The USSR before it collapsed, included the countries who are not aided today.
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Groundwater
Groundwater is defined as water that is found beneath the surface of the Earth in conditions of 100 percent saturation (if it is less than 100 percent saturation, then the water is considered soil moisture).
True
<span>Elaborative rehearsal refers to the process of remembering
new information by linking it to previously learned information and making it meaningful in some way. </span>
<span>Using the mnemonic device “My Very Educated Mother Just Served Us Noodles” to recall the planets of the solar
system (Mars, Venus, Earth, Jupiter, Saturn, Uranus and Neptune) by taking the
first letter of each planet is an example of elaborative rehearsal. By linking the list of planets to other previously known
information, one is more likely to remember the list of planets.
Similarly, associating a newly met person's features with a previously known person's (your best friend's) features is an instance of elaborative rehearsal. </span>
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A because Rome was in a good place so they had a lot of resources