a fact because most people agree. a fact because it has been observed and tested. an opinion because both metals are hard to find. an opinion because more research is needed.
The statement "gold is more dense than lead" is

Options:
- a fact because most people agree.
- a fact because it has been observed and tested.
- an opinion because both metals are hard to find.
- an opinion because more research is needed.

a fact because it has been observed and tested.