Renewable energy (solar, wind, water, hydro, tidal and wave, geothermal, ocean thermal, biomass and biofuel).
coal,wood
No natural gas is natural gas.
No natural gas is natural gas.
oil and natural gas reserves are found in
Oil and natural gas are both "fossil" fuels.
should we use natural gas and oil
Is natural gas fossil fuel
Alternatives fuels are fuels that are not made from fossil fuels (coal, oil and natural gas).
Research into biofuel could provide valuable alternatives to oil and natural gas.
Wind, water, propane, electricity, animal... Bioenergy, Geothermal, Coal, Natural Gas, Oil...
Natural gas on top of the oil. Natural gas is less dense.
Oil and natural gas.
Oil and natural gas are fossil fuels.
No natural gas is natural gas.
No natural gas is natural gas.
Oil, natural gas, fishing
CNG- Compressed Natural Gas.
oil and natural gas reserves are found in