82
edits
Changes
Created page with "Hydraulic fracturing or fracking is a type of drilling in which rock is fractured by pressurised water containing chemicals (about 2%) and sand in order to tap oil and gas tha..."
Hydraulic fracturing or fracking is a type of drilling in which rock is fractured by pressurised water containing chemicals (about 2%) and sand in order to tap oil and gas that were trapped in shale formations.