Biogas plants can provide a source of clean energy in:

Rural areas
Industrial units
Dairy farms
All of the above

The correct answer is: d) All of the above

Biogas plants can provide a source of clean energy in rural areas, industrial units, and dairy farms. Biogas is a renewable energy source that can be produced from organic waste, such as manure, sewage, and food waste. It is a gas that is made up of methane, carbon dioxide, and other gases. Biogas can be used to generate electricity, heat, and power vehicles. It is a clean and efficient energy source that can help to reduce greenhouse gas emissions.

In rural areas, biogas plants can be used to provide a source of clean energy for homes and businesses. They can also be used to improve sanitation and reduce the amount of waste that is sent to landfills. In industrial units, biogas plants can be used to generate electricity, heat, and power vehicles. They can also be used to reduce the amount of waste that is produced by industrial processes. In dairy farms, biogas plants can be used to generate electricity, heat, and power vehicles. They can also be used to reduce the amount of manure that is produced by dairy cows.

Biogas plants are a sustainable and efficient way to produce clean energy. They can help to reduce greenhouse gas emissions, improve sanitation, and reduce waste. Biogas plants are a valuable tool for communities and businesses that are looking to reduce their environmental impact.

Here are some additional details about each option:

  • Rural areas: Biogas plants can be used to provide a source of clean energy for homes and businesses in rural areas. They can also be used to improve sanitation and reduce the amount of waste that is sent to landfills.
  • Industrial units: Biogas plants can be used to generate electricity, heat, and power vehicles in industrial units. They can also be used to reduce the amount of waste that is produced by industrial processes.
  • Dairy farms: Biogas plants can be used to generate electricity, heat, and power vehicles on dairy farms. They can also be used to reduce the amount of manure that is produced by dairy cows.