Trades.
For example; the trade of wheat, other cash crops and natural resources
Answer:
The amount of time spent with friends is a third-variable problem.
Explanation:
Third variable problem is a term that describes a type of mix up or confused conclusion where by, third variable leads to a confound causal relationship between two other variables.
In this case, June found that social media use is actually not associated with the feeling of loneliness, because the third variable is actually the cause or have the direct relationship to the feeling of loneliness.
The correct answer should be A). The Rice Rivers. Hope this helped!
Carl Linnaeus developed the classification system that is currently in use .
<h3>What is Classification systems?</h3>
Classification systems serves as the grouping and organizing of data base on certain criteria so they can be compared.
Therefore, the current Classification systems base on the living things was designed in 18th century and was widely accepted till today.
Learn more about Classification systems at;
brainly.com/question/276526
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Dec 27 2018 is Justin Trudeau
