Which of the following power plants are 'steam based'?

Steam-based power plants generate electricity by using steam to drive a turbine, which in turn drives a generator. The primary sources of heat for producing steam are:

• Thermal Power Plants: Use coal, oil, or natural gas to heat water in a boiler, producing steam.
• Nuclear Power Plants:  Use nuclear fission to generate heat, which is used to produce steam for driving turbines.
• Solar Power Plants: Some solar thermal plants use steam, but they are not as common as nuclear or thermal power plants.
• Hydro Power Plants: Use water flow to generate electricity directly (without steam).
• Wind Power Plants: Use wind turbines to generate electricity without steam.

Thus, nuclear and thermal power plants are the main steam-based power plants.