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Silicon Valley is popularly known for gadgets, computers, and laptops. I think companies that would choose to be at that place are engaged in these kinds of business. It would also include repairs and technical support on troubleshooting that would support the technology.
Answer:
3. Countries with mild climates produce their own needs and are less likely to trade.
Explanation:
Logically speaking, a country with a more agricultrually friendly climate would have less need to trade for food and resources from other countries, provided exploitation is not a part of the equation.
Culture: Christianity in Africa. Towns become sophisticated.
Society: more women than men because men 14 - 35 were the most profitable slaves. Women had to do men's jobs. Polygamy. Life got more dangerous because of guns.
:)