Question

which two properties do these two objects have in common?
glass flask
ceramic mug
select the two best answers.
transparent
smooth
fragile
opaque

Explanation:

1. Analyze "transparent": A glass flask is transparent, but a ceramic mug is opaque, so this is not a common property.
2. Analyze "smooth": Both a glass flask (glass surface) and a ceramic mug (ceramic surface) typically have smooth exteriors.
3. Analyze "fragile": Glass and ceramic are both brittle materials, so both the glass flask and ceramic mug are fragile.
4. Analyze "opaque": A glass flask is transparent, not opaque, so this is not a common property.

So the two common properties are smooth and fragile.

Answer:

smooth, fragile