Answer:
Federation: a group of states with a central government but independence in internal affairs.
Union: the action or fact of joining or being joined, especially in a political context.
Explanation:
I think the answer to this question is D.20%
Deserts such as the great basin, gobi, and takla makan are examples of rainstorm deserts. Chinook deserts subtropical deserts rainshadow deserts monsoon deserts.
Answer: rainstorm deserts
b they disappear behind closed elevator