4. What are some examples of trade between villages? How do historians know
about this trade?

Skilled villagers were able to trade their goods and services with other villages. ... Early villages developed temporary shelters to follow herds, competing with other villages for food.

Explanation: The interaction between villages and the trade between them not only helped economy development or cultural development but also scientifical and social development since by observing how other societies and tribes interacted and did things, they managed to chose the best way to do things and share new techonologies

i disagree that there is little difference between adult female development and adult male development. sociological studies comparing female and male pathways to adulthood, revelead that there are sustancial differences between them. particularly, female and male differ from timing of marriage, when they began to live with children and the likelihood of combining wife/husband and parent roles.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.