Scientists<span> can tell by observing the seismic waves that are recorded all over the surface of the </span>earth<span> from distant earthquakes. The seismic waves are reflected (bounced off) </span>layers<span> of different density, and they are refracted (bent) when they enter </span>layers<span> of different density.</span>
Answer:
I believe that they are decendents of the earliest split from ancient Eurasian populations.
Answer: Culture has the ability to shape three types of interactions for members of a group: interactions between group members, outside of members, and with the environment. When it comes to interactions between each other, people in a culture are taught at a young age what is acceptable and what is not acceptable. For example, kids observe and practice how close to stand to somebody else. They learn appropriate greetings when they start conversations. They are also given direct instruction on how to interact at school and with adults within the society. Cultural differences or similarities with other groups can dictate interactions with outside groups. When different cultural groups find similarities, they often have positive interactions with one another. If they do not have much in common, each group must take some time to learn about the other group, and they must learn how to interact and compromise with each other. Culture can also have a large impact on how people interact with their environment. This can include how to build structures to adapt to climate differences, how traditions are practiced, and what clothing styles are worn.
