Hi Can you tell from a wallet address what network it is on?
Is there a difference between the Ethereum Network and the BNB Network, if so how can you tell?
Both bsc and eth networks use the same address format. So use the respective blockchain specific to that network to check. For looking for an address in etherscan (eth) and see transactions, that address is active on the eth network. So, if you put the same address into BscScan (bsc) and see transactions, the address is active on either bnb or eth network.