The address is used to send and receive crypto on the network on blockchain. It’s kind of a back account number where you can make crypto transactions. As every back has its own address, every cryptocurrency also has its particular address. Bitcoin addresses will be different from Ethereum, for example, so be careful.
The cryptocurrency market is not different in value rankings than the traditional market because demand determines the value in both cases. For this reason, the top 10 most popular cryptocurrencies are the ones that have a high market value because of high demand.
However, there is a complex phenomenon that distinguishes crypto from any other fiat or commodity. Bitcoin, for example, is the market leader in terms of market cap and a trend setter. It was the premier crypto, so there is little chance now that any other crypto can replace it any time soon.