Yes, it is possible to swap your testnet Avalanche USDC to Goerli ETH USDC. To do this, you will need to use a decentralized exchange (DEX) such as Uniswap or Kyber Network. These platforms allow you to swap any two ERC-20 tokens without the need for a middleman. All you need to do is connect your wallet to the DEX, select the tokens you want to swap, and execute the trade. You will need to make sure you have enough ETH in your wallet to pay for the gas fees associated with the transaction.
