Question

Which of the following shows a modern technology measure used to preserve and conserve the environment?

• A. Practising crop rotation
• B. Using leaded petrol in motor vehicles
• C. Using machines in agricultural industry
• D. Converting biological wastes into biogas

Answer 1

The correct option is D Converting biological wastes into biogas

There are various different methods which are used for the conservation of and healthy environment. The most modern method is conversion of the biological wastes from plants and animals into useful product like biogas. The organic matter from the plants and animals which act as wastes in the form of degradable matter are used in this process. Anaerobic bacteria perform anaerobic fermentation and convert this wastes into biogas. Biogas is commonly used as fuel because of high amount of methane. Methane serves as a clean and non-polluting fuel.

Thus, the correct answer is option D.