14. Which of the following statements best describes 21st-century migration flows to the United States?<span>Large numbers of immigrants and migrant workers, including skilled and unskilled laborers and many with advanced degrees, are coming to the United States from South and Central America.
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Valence electrons, then, are electrons in the outermost shell of the atom that determine an atom's or group's ability to bond with others. In chemistry, a group refers to two or more atoms that are specifically arranged.
Hoped that helped
Fire is important because it cooked food, provided light and provided heat
The North Has the most climate variation in the USA. Hope this helps!
Obsidian is volcanic glass compared to other igneous rocks , there’s also no proper crystallization compared to the other igneous rocks
