Question

1) Is the palm of our hand opaque, transparent, or translucent when you place a lighted torch under your hand?

2) what is liguid oxygen and its uses?

Answer 1

The palm of our hand is opaque as it does not allow minimal light to pass through.
Liquid oxygen is a common cryogenic liquid oxidizer propellant for spacecraft rocket applications, usually in combination with liquid hydrogen, kerosene or methane. Liquid oxygen is useful in this role because it creates a high specific impulse.
Hope this will help you

Answer 2

Answer:

our hand is translucent

Explanation:

as if we keep a light below our hand the hand becomes redish and thus allow to partially pass the light

hope it helps u