Bitcoin is a digital currency that makes it possible for rapid payments to be transferred at a very low cost, with no need for involvement on the part of issuers. You will find this on the Account Funding as BITs.  There are 1,000,000 BITS in a whole Bitcoin. So, one BIT would be worth 0.000001 BTC. A useful converter is here.

A Bitcoin address is a string of 26-35 letters and numbers which do not include any spaces and can only be used once.

Bitcoin is a currency which changes in price quite quickly depending on the market, close to the same way a FIAT (government-controlled) currency works, as prices change due to many factors but one of the main factors would be on how well it does on the markets. All Bitcoin transactions have a fee of 0.0005BTC. If your Bitcoin wallet is in a different currency other than USD, you may notice that you would receive a larger or smaller amount when depositing and withdrawing.