Question

How the eath today different from 1000 years ago?

Answer 1

because of pollution caused by factories and cars

Answer 2

We'll live somewhere beyond Earth. In 1,000 years we'll probably have a thriving civilization on Mars, the Moon, or maybe even another planet beyond the solar system. We've already discovered billions and billions of planets outside our own solar system. There are 40 billion Earth-like planets in our own galaxy alone.