what are some good investments to make money

i think to get same money is investment some money, but the real question is what are some good investments to make money? cause lots of choices in investments money, for example; investment in forex markets, investment in advertising, investment in btc (bit coin) / in sathosi, forex markets allows to get a lots money from trading, for example i invest $200 and i buy in 2 lot standart account and markets go up 100 point, so i will get $200 from that money, but this forex trading in addition to get lots money also provide high risk, for example if market go down in 100 point, thats money dissapear or mc (miss call). so if investment in forex must be prepared. investment in advertising in my opinion very safe but to get refund from that is so long. and investment in btc is like trading. but in btc investments can choice like forex or like advertising, or one more option like investment to buy cloud minning. investment in cloud minning provide choice to buy contract from company provider in ghz unit, the greater ghz purchased with greater returns in money, but time required to returns that not like forex or advertising, it all depends on the agreement in contract. SAFI, Morocco
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