1. In what way is a black hole blacker than black ink or a black piece of paper? 2. If the Sun suddenly became a black hole, how would Earth’s orbit be affected? 3. Why are all of the observed...

1. In what way is a black hole blacker than black ink or a black piece of paper?

2. If the Sun suddenly became a black hole, how would Earth’s orbit be affected?

3. Why are all of the observed stellar-remnant blackhole candidates members of close binary systems?