Can you help me with this

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)

The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?

Mixing salt in water is an example of physical change