GEOLOGY

Detailed explanation-1: -Oil and natural gas typically form in sedimentary rocks. When carbon-rich organic material, like leaves, are deposited terrestrially in water with a low oxygen content (stagnant water), it may not fully decay.

Detailed explanation-2: -Natural gas is created naturally over the course of hundreds of millions of years. It is formed when layers of decomposing plants and animals are subject to intense heat from the Earth and pressure from rocks.

Detailed explanation-3: -Fossil fuels, petroleum and natural gas are found in sedimentary rocks.

Detailed explanation-4: -Natural gas refers collectively to the various gaseous hydrocarbons generated below Earth’s surface and trapped in the pores of sedimentary rocks. Major natural gas varieties include methane, ethane, propane, and butane.