avoid airdrops that require you to send a certain amount of BTC to withdraw your prize, most likely airdrops like this are scams.
it is no longer a possibility that it is definitely said to be a scam, those who still send a certain amount of money must first learn what airdrop means. Actually, the airdrop doesn't have to do several tasks such as following Twitter, subscribe to YouTube or others. The real airdrop is just filling out a form or just giving our wallet address and it's all free