Farmers needed to control their water supply because they can either have too much water or too little. Too much and their crops drown, too little and they dry up. Another reason is because they needed to provide dams to control flooding when rivers overflowed when things thawed in the spring, or during heavy rain fall, and to be able to have water during a drought. Speaking of a drought, they can use up too much water and cause a drought in big farming areas. Hopes this answers your question!
Not sure for this question explain it better
Answer: Una de las principales causas de la migracion es debido a la situacion economica que enfrentan en su pais de origen.
Explanation: La migracion es un fenomeno que se ha realizado durante muchos años y su finalidad es la de partir a otro lugar para buscar una mejor vida. Aquellas personas que dejan su tierra lo hacen en busqueda de mejorias.
Paises en donde hay una fuerte crisis economica y social son razones para que sus habitantes emprendan la marcha y busquen una mejor vida. Si el ciudadano no siente seguridad y que sus necesidades serán cubiertas en la sociedad que vive, migrar será siempre una de sus ideas principales.
In the hierarchical model, each parent can have many children, but each child has only one parent.
<h3>What is the hierarchical model?</h3>
This is the model that has to do with parenting. In this particular method, it allows for the repeating of information between parents and the relationships that they have in place with their children. Here the child would only be able to have just one parent but the parents can have the number of children they want.
Hence we can say that In the hierarchical model, each parent can have many children, but each child has only one parent.
Read more on parenting here: brainly.com/question/240537
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