Because, if there's no summer the seasons won't be completed.
Sleep. Melatonin is for sleep
Shipping technologies and cultures were more readily shared
Answer:
C. political
Explanation:
A region is a place or territory that is on control by a particular person or organization.
A region that is administered by the United States government is an example of a political region.
This is because, a political region is a physical territory that is owned or controlled by the United States government, which makes it political and sovereign.
Answer:
I am confused on what this is supposed to be, but if you are talking about chemicals, then your answer is sulfur.
Hoped this is what you're looking for. Sorry if it isn't. I would love to help, but it needs to be more specific.