I want to get 0.1BTC to 1BTC or more in 1 week if that is possible without spending any money. Does anyone know like websites or activities that could get me that much bitcoins?
This is possible but I don't think you can earn this fast in the bitcoin space. Earn in another currency and trade for bitcoin. Day job, sales of products etc. 0.1 btc is only 32$ and it's possible to make 32$ in a week.