Which of the following statements about using geothermal energy is not true?
a. geothermal energy can be used to fuel vehicles.
b. geothermal energy can be used as a source of electricity.
c. geothermal energy can be used as a source of heat.
d. geothermal energy is a renewable resource.

The answer would be:
a. Geothermal energy can be used to fuel vehicles.

Geothermal energy is energy in the form of heat from the Earth. To use this energy, one would have to tap into the source like hot springs and hot rocks found deep underground. It is commonly used to heat buildings and can generate heat. Geothermal energy is harnessed directly from the Earth so it would not be applicable for vehicles.

a. Geothermal energy can be used to fuel vehicles.

Despite the vast uses of geothermal energy, there has been a limitation as to its utilization as a fuel to power vehicles. Hence, such geothermal projects pertaining to this are still under development.