Answer:
Humans found many ways to create irrigation and used it to domesticate plants and start farming. With farming, people altered their natural environment even more and controlled what plants grew where and how well those plants produced food.
Explanation:
So many differences, can't focus on what is important due to this large within-group variance can obscure a between-groups difference.
within-groups variance (from time to time referred to as error institution or error variance) is a term utilized in ANOVA checks. It refers to versions due to variations within man or woman corporations (or degrees). In other words, no longer all the values within every group (e.g. method) are equal.
By means of dividing the experimental conditions into numerous "blocks", the researcher can localize error variance i.e. in each block the inside group's variance is smaller. for example, in an test a researcher accrued the information in days.
Learn more about groups variance here: brainly.com/question/28025913
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Answer c
Because it’s the economic and wildlife is apart of economic