Most leaves are opaque (you can't see through them), but many are translucent (sort of see through them).
Aluminum foil is opaque.
Opaque
something
No, it's translucent.
It is opaque
Aluminum foil is opaque.
translucent
Opaque
opaque
something
Transparent.
No, it's translucent.
Transparent
All three ; the front is a mix of transparent & translucent and the back (where the photo-receptor dyes are) is opaque.
It is opaque
Opaque.
no