Who is Kalki?

Kalki is the tenth avatar of Vishnu. It said that Kalki will come at the end of Kali-yuga. My dad says the end of kali-yuga is when the everyone will be evil and the world will be destroyed by Kalki. My dad says that other religions other that Hinduism is said that they will deystroy the world. Don't worry the world will be destroyed after infinity years. My dad says Thousands thousands of years. In the Future. By the way Kalki is said that he rides on the white horse. My name is sudipta and if you are confused e-mail My dad at sunil.dutta@climatechange.gov.qld.au. just say i told you to e-mail my dad. And if you want to know from me type on wikianswers "wat is Sri Vishnu2 passWord in Runscape." you will find my E-mail. My e-mail if you are lazy. krish5datta@gmail.com