Explain why we can see this star pattern in the summer, but not in the winter.

Each day the Earth travels further in its orbit, and a different part of the night sky is visible. The stars appear seasonally, so the pattern will remain the same. The same stars will appear each summer in the Northern Hemisphere following this pattern, as will those in the other seasons.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

an era of negotiation.

is that an answer to your question?