Question

Why is dark matter difficult to measure?

A) Because it does not exist in our galaxy.

B) Because it disappears when it encounters ordinary matter.

C) Because it creates so much heat it melts any instruments invented so far.

D) Because it does not emit anything that current technology can detect

Answer 1

I’m gonna guess D but honestly I don’t know

Answer 2

B) Because it disappears when it encounters ordinary matter.

- Dark matter is very difficult to detect because they have almost no interaction with normal matter.