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What is the difference between regular and irregular clusters of galaxies?
Purchase
The act of buying goods or services.
Transactions
Financial activities involving the exchange of goods, services, or funds between two or more parties.
International Exchange
The system or process through which different currencies are traded, affecting global trade and economics.
Investment Income
Income earned from various forms of investments, including dividends, interest payments, and profits from the sale of assets or securities.
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