_________ power station at the mouth of the river blocks the flow of polluted water into the sea.

Thermal
Nuclear
Tidal
Wind

The answer is: C. Tidal

Tidal power stations are a type of renewable energy that uses the rise and fall of the tides to generate electricity. They are typically located in estuaries or near the mouths of rivers, where the tidal range is large.

Tidal power stations work by using turbines to convert the kinetic energy of the tides into electricity. The turbines are typically located in barrages, which are dams that are built across the mouth of a river or estuary. When the tide rises, the water flows through the barrage and turns the turbines. The turbines then generate electricity, which is then transmitted to the grid.

Tidal power stations have a number of advantages over other forms of renewable energy. They are a reliable source of energy, as the tides are predictable. They are also a clean source of energy, as they do not produce any emissions. However, tidal power stations can be expensive to build and operate.

The other options are incorrect because:

  • Thermal power stations use heat to generate electricity. The heat can come from burning fossil fuels, such as coal or natural gas, or from nuclear fission. Thermal power stations are the most common type of power station in the world.
  • Nuclear power stations use nuclear fission to generate electricity. Nuclear fission is a process in which the nucleus of an atom is split into two smaller nuclei. This process releases a large amount of energy, which is used to heat water. The hot water then turns a turbine, which generates electricity. Nuclear power stations are a clean source of energy, as they do not produce any emissions. However, nuclear power stations are expensive to build and operate, and there is the risk of accidents.
  • Wind power stations use the wind to generate electricity. The wind turns turbines, which generate electricity. Wind power stations are a clean source of energy, as they do not produce any emissions. However, wind power stations can be intermittent, as the wind is not always blowing.

I hope this helps!

Exit mobile version