Across
- 2. What is added to natural gas to give it a foul smell, to serve as a safety device..
- 5. Seismic technologies, make it possible to discover natural gas reserves.
- 7. Drilling sites that are NOT found on land
- 10. Percent of energy used comes from Natural gas
- 13. What type of gas is produced when burning natural gas?
- 14. people who study the structure and process of Earth
Down
- 1. organic matter changed into coal, oil, and
- 3. natural gas is stored in storage tanks, gas wells or _________.
- 4. also known as British Thermal Units is how we measure natural gas.
- 5. Percent of homes that use natural gas in their appliances.
- 6. a by-product that is produced with methane, and butane
- 8. Another greenhouse gas, that can hurt the environment.
- 9. Once a site seems promising to contain natural gas _____ occurs.
- 11. natural gas burns more ______ than other fossil fuels.
- 12. Natural gas top use is by electric utilities and what?