關於Reflectiveness的意思和用法的提問

A: to reflect (verb)
The water is reflecting the sky.
The clouds are reflected in the lake.
This mirror can reflect the light.

reflection (noun) = opposite image reflected on a shiny surface.
I looked at my reflection in the mirror.
She looked at her reflection in the water.
I can see my face in the reflection.

reflective (adjective)
Still water is reflective, but moving water isn't.
Shiny things like metal are reflective.
Is glass reflective?

Reflectiveness (noun) = quality of a material being reflective
The reflectiveness of an object depends on how the light bounces off it.
The reflectiveness of this material means that most of the heat gets trapped inside.