few ways to make money from BTC:
The list is wrong and deceitful. Sorry. This just lures newbies into losing time and money.
* Day trading is by far not for everybody. One may gain many days in a row, but if he doesn't know what is he doing, sooner or later will lose more than all those gains, since the market is very volatile and hard to predict.
* Mining is expensive and needs extremely cheap electricity. Lists like this can send newbies ask how can they mine Bitcoin with their CPU...
* Investing. One has to have money he can afford to lose, else FOMO will strike and will buy high and sell low.
* Selling.. OK, maybe..
* Yield farming. With so many scams and with current Bitcoin rise it was better and safer to just hold Bitcoin. The DeFi can be interesting, but it's far too young and far too risky.
* Airdrops. Those usually ask for many tasks and pay some pennies here and there. No.
* Surveys. Again, mostly work for pennies. And the result will be only high tx fees when one will want to make use of those Bitcoin
No. It's easier. Bitcoin is money. Plain and simple. Money.
How to get money?
Work for it. Whatever you earn
and it's surplus, can be kept as Bitcoin. Indeed, if one earns altcoins or fiat, those have to be exchanged to Bitcoin first. But really, that's all.