Explanation:

Disadvantages of non-relational databases include: Data Consistency - non-relational databases do not perform ACID transactions.
Note: Relational databases are optimized for writes. They are optimized for consistency and availability.
Advantages of relational databases include simplicity, ease of data retrieval, data integrity, and flexibility.
Reference:
https://towardsdatascience.com/choosing-the-right-database-c45cd3a28f77