Q1. [1] straightforward initial-understanding
Which of the following correctly describes how geothermal energy is used to generate electricity?
(A) Uranium atoms are split to release heat, which boils water into steam to drive turbines.
(B) Groundwater heated by rocks deep in the Earth rises as steam and is used to drive turbines.
(C) Sunlight is focused onto water to convert it into steam that drives turbines.
(D) Organic waste is decomposed to release gas, which is burned to produce steam for turbines.
- A Uranium atoms are split to release heat, which boils water into steam to drive turbines.
- B Groundwater heated by rocks deep in the Earth rises as steam and is used to drive turbines.
- C Sunlight is focused onto water to convert it into steam that drives turbines.
- D Organic waste is decomposed to release gas, which is burned to produce steam for turbines.
Generated by claude-sonnet-4-6 · 2026-06-26 13:31 · grounding rag
Model Answer
(B) Groundwater heated by rocks deep in the Earth rises as steam and is used to drive turbines.
Explanation
The passage on Geothermal Energy clearly states: "Groundwater in such areas absorbs heat from the rocks and becomes hot… it turns into steam. This steam is used to drive turbines and generate electricity." Options A (nuclear), C (solar), and D (biogas) describe other energy sources. Always match the definition to the correct source.