Observe Figure 2 and answer the following question:

(a) Identify the type of energy generated and state the advantages of using it.

(b) Which two areas can be well suited for its generation?

(c) Briefly describe the method of generating electricity by this method.

(d) In India this source of energy has been divided into provinces. Name three such provinces.

(a) The type of energy being generated in the given figure is Geothermal energy. The advantages of using Geothermal energy are as follows:

1. It is easily accessible because of its extensive distribution.
2. It is environment-friendly in nature; has low emission of sulphur, carbondioxide and other Greenhouse Gases.
3. It is independent of external supply and demand effects and fluctuations in exchange rates.
4. It is independent of weather and season.

(b) Two areas that can be well suited for its generation are - Manikaran in Himachal Pradesh, Puga Valley in Ladakh.

(c) Method of Generating Electricity Using Geothermal Energy is described below:

1. Wells are drilled deep (thousands of feet) into the Earth to access hot water or steam from geothermal reservoirs.
2. Hot water is pumped from deep underground through a well under high pressure.
3. When the water reaches the surface, the pressure is dropped, which causes the water to turn into steam.
4. The steam spins a turbine connected to a generator, producing electricity.
5. After use, the steam is cooled in a cooling tower and condenses back into water.
6. The cooled water is pumped back into the Earth to begin the process again.

(d) The names of three such provinces are as follows:

1. Himalayan geothermal province
2. Son-Narmada-Tapti graben
3. Andaman-Nicobar Islands geothermal province.