Answer:
Geothermal renewable energy has declined in recent years.
Step-by-step explanation:
Geothermal energy is generated by the high temperatures within the earth's core. Though it has been used as an energy source for a long time, it has declined in recent years due to the increase of other use of renewable and non-renewable energy.
The efficiency of geothermal energy supply is also not reliable and there are cost implications to think about. The geothermal reserve in most location is in places that are far from people, therefore, transportation costs become high. There are also pumping costs, high electricity cost per megawatt, etc.