Answer: It should be Geothermal.
The avantages of geothermal energy are;
1. It is a Renewable and reliable source of energy.
2. It is a clean source of energy and it is sustainable.
3. It has little or no cost of maintenance and operations.
Disadvantages are;
1. It can cause environmental pollution. High concentration of of geothermal can lead green houses gases affecting the atmosphere.
2. It can lead to earthquakes.
3. The geothermal powerplants or cooling system are expensive to maintain and purchase.
Step-by-step explanation:
Geothermal energy is the heat energy that is gotten from the sun surface of the Earth. It is found in the rock and fluid in the Earth crust.