Who was Marie Curie?

Science

How many times did Marie Curie win the Nobel Prize?

Science of how different parts of the universe interact

Radioactivity is a type of energy that is emitted from certain materials.

Wood is an example of a material that is radioactive.

Which of these statements about radioactivity is NOT true?

Which of these was not a university Stephen hawking attended?

Which of these is a title of one of Stephen Hawkins books?

Which of these did Stephen Hawkin make discoveries about?

Which of these was not one of Stephen Hawking's achievements?