CNG (Compressed Natural Gas) is being promoted as a fuel for public transport in Assam due to its:

Lower cost
Environmentally friendly nature
Both a & b
None of these

The correct answer is: c) Both a & b.

CNG is being promoted as a fuel for public transport in Assam due to its lower cost and environmentally friendly nature.

CNG is a cleaner-burning fuel than gasoline or diesel, and it produces fewer emissions. This makes it a good choice for public transportation, which can help to improve air quality in cities.

CNG is also a more efficient fuel than gasoline or diesel, which means that vehicles that use CNG can travel further on a tank of fuel. This can save money for public transportation operators.

Overall, CNG is a good choice for public transportation because it is cleaner, more efficient, and less expensive than gasoline or diesel.

Here are some additional details about each option:

  • Option a: Lower cost. CNG is a cheaper fuel than gasoline or diesel. This is because CNG is a byproduct of natural gas production, which is a relatively abundant resource.
  • Option b: Environmentally friendly nature. CNG is a cleaner-burning fuel than gasoline or diesel. This is because CNG contains fewer pollutants, such as carbon monoxide and hydrocarbons.
  • Option c: Both a & b. CNG is being promoted as a fuel for public transport in Assam due to its lower cost and environmentally friendly nature.