
Petroleum - National Geographic Society
Jul 2, 2025 · In the 1870s, oil producers in Pennsylvania noticed that abandoned oil wells were accumulating rainwater and groundwater. The weight of the water in the boreholes forced oil out of …
Petroleum - National Geographic Society
Jul 2, 2025 · The geological conditions that would eventually create petroleum formed millions of years ago, when plants, algae and plankton drifted in oceans and shallow seas.
Oil Shale - National Geographic Society
Oil shales, like this one from the Uinta Basin, Utah, United States, formed millions of years ago from the remains of plants and animals trapped under intense heat and pressure.
Fossil Fuels - National Geographic Society
Oct 19, 2023 · Oil is originally found as a solid material between layers of sedimentary rock, like shale. This material is heated in order to produce the thick oil that can be used to make gasoline.
What Are Fossil Fuels? - Education
Oct 19, 2023 · What are fossil fuels? How were they formed? Learn how human use of non-renewable energy sources, such as coal, oil, and natural gas, affect climate change.
Smog - National Geographic Society
Oct 1, 2024 · Getting regular tune-ups, changing oil when scheduled, and inflating tires to the proper level can improve gas mileage and thus reduce emissions. Fuel up during the cooler hours of the …
Natural Gas - Education
Oct 19, 2023 · Like other fossil fuels such as coal and oil, natural gas forms from the plants, animals, and microorganisms that lived millions of years ago. There are several different theories to explain …
Distribution of Fossil Fuels - Education
Oct 19, 2023 · Over millions of years, heat and pressure from Earth’s crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal. …
Coal - National Geographic Society
Nov 15, 2024 · Cannel coal was extensively used as a source of coal oil in the 19th century. Coal oil is made by heating cannel coal with a controlled amount of oxygen, a process called pyrolysis.
Geography Standard 14 - Education
Sep 4, 2024 · Describe and explain examples of the technology used in different industries in the United States (e.g., high-tech farming and irrigation, excavating machinery in strip mining, drilling in oil …