Answer:
In underground environment gas is stored in depleted oil or gas reservoirs, in aquifers, in caverns leached in salt formations, in rock caverns, and in old mines. Among these, storage in salt caverns and in depleted oil and gas fields had found wide application until today. Crude oil, coal and gas are fossil fuels . They were formed over millions of years, from the remains of dead organisms: coal was formed from dead trees and other plant material. crude oil and gas were formed from dead marine organisms.
Step-by-step explanation: