Answer:
1. D
2. C
3. A.
4. B
Explanation:
1. D. Groups of people make tools of stone: this period is known as the stone age, and it occurred around 1.76 million years ago
2. C. Homo Sapiens make their first appearance in history: from research, the earliest homo sapiens to have been found dated to have existed 200,000 years ago in Africa.
3. A. In the Ice Age, people migrate to parts of North America: the migration was believed to have occurred between the Siberia in Asia (eastern part) and Alaska in North America around 20,000 to 25,000 years ago.
4. B. The start of the Neolithic Revolution: this period was believed to follow the Ice Age, and it began around 12,000 years ago.
Answer:
Mexicans began to search for gold in Texas. Thousands of people came to Texas to claim land.
Economists refer to the polarization of the labor force when middle-class jobs requiring a moderate level of skills, like autoworkers' jobs seem to disappear relative to those at the bottom, requiring few skills, and those at the top, requiring greater skill levels.
<h3>What causes a polarized society?</h3>
Social polarization is the segregation within a society that emerges when factors such as income inequality, real-estate fluctuations, and economic displacement result in the differentiation of social groups from high-income to low-income.
<h3>
What is the polarization effect?</h3>
Polarization refers to an effect reducing the performance of batteries. This effect is a displacement of electrode potential from the equilibrium value. There are two types of polarization: activation and concentration.
Learn more about polarization here: brainly.com/question/13090534
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