Advantage-extra work\data to compare first data with.
Disadvantage-Your data might change over time.
There are 7 characteristics of Egypt.
1.Stable food supply
2.social structure
3.government
4.religion
5.culture
6.written language
7.technology.
The earth tilts for different times of the year. During the summer Alaska is a lot closer to the sun than florida.
The answer is D. Ecosystems experience change through human activity and natural events
D Eurasian plate and Australian plate