The most important use of lead is in batteries.
It is also used as weights. Ballast in sailing ships, diving weights, car tyre balancing weights.
Also it is used as a component of some metal alloys. The most familiar of these is solder.
Lead is used in making pigments (though now it is banned in a lot of uses due to health concerns).
some uses are for batteries, most technology, cable lines, and pencils, there is a lot more than those four but those are some important ones.
lead
in pencils in pencils
Fermium hasn't uses.
Some important uses for Onyx are Gemstones, Ornamental stones, Birth stones, and Decoration.
chemistry
Uses of sound include communication, entertainment, warning signals, and therapy. Abuses of sound can lead to hearing loss, disturbance of peace and quiet, causing stress, and masking important sounds in the environment.
There are many important uses for copper. Copper can be used in pipes and in wiring as a few examples.
microchips
jewelry and art
Mohandas Ghandi is important in India's history because he lead something out of some place or lead some people to some place
It is used to make jewelry.