Read the following paragraph and determine if the hypothesis is true:

How to identify lead paint<br>Determine if the paint is from 1970 or earlier. Most homes built before 1970 often have lead-based paint on the walls, doorways, stairwells, and baseboards. If your home is old and you know it was built in the early or mid 1900s, it may have lead-based paint.

Choices:
 +Yes.
 +It's impossible to say.
 +No.
Hypothesis: Lead paint can be detected with the eyes



It's impossible to say