1. What are the advantages of using CNG and LPG as fuels?

Explanation:

The following are some benefits of using CNG and LPG as fuels:

Unlike CNG, LPG burns quickly.

LPG and CNG both burn with a significant amount of heat energy.

CNG and LPG can be easily transferred via pipelines.

Clean fuels like CNG and LPG don't emit smoke when they're burned.


2. Describe how coal is formed from dead vegetation. What is this process called?

Explanation:

Millions of years ago, dense woods were submerged under the soil by natural forces. Over them, more and more soil was dumped, and they became more tightly packed. They were subjected to extraordinarily high temperatures and pressure as a result of this. Under these harsh circumstances, they gradually turned into coal. Carbonization is the term used to describe the entire process of producing coal from dead plants.


3. Describe how coal is formed from dead vegetation. What is this process called?

Explanation:

Woods, plants, ferns, and other vegetation were submerged under the rocks, dirt, and sand millions of years ago as a result of natural occurrences like flooding, earthquakes, etc. They were gradually squished as additional earth piled on top of them. The upshot of this was high pressure and heat. These circumstances and the anaerobic environment caused the carbon-rich organic material in wood to be transformed into coal.

When wood progressively transforms into coal, the process is known as carbonisation.


4. Describe the characteristics and uses of coke

Explanation:

Coke has the property of being 98% pure carbon. Its colour is black, porous, and rough. Not even much smoke is produced by it.

Coca-Cola makes a great fuel. As a reducer, it performs well. In metallurgical processes, metals are typically reduced from their oxides. It's used to produce water gas.


5. Explain the process of the formation of petroleum.

Explanation:

Under the seabed, aquatic life and flora are buried, where they eventually transform into petroleum. Marine life and flora died thousands of years ago and ended up on the ocean floor. Under anaerobic conditions, bacteria degrade this organic substance. Due to extreme pressure and heat, the decomposing remains of microscopic plants and animals gradually turned into petroleum.


6. Explain why fossil fuels are exhaustible natural resources.

Explanation:

Fossil fuels are restricted by nature and will be depleted by human activity, making them an exhaustible natural resource.


7. Classify the following as exhaustible and inexhaustible natural resources- air, sunlight, water, forests, wildlife, coal.

Explanation:

Exhaustible resources include coal, forests, and wildlife.

unending supplies of water, sunlight, and air


8. Why is petroleum called a fossil fuel ?

Explanation:

Petroleum is called a fossil fuel as it is obtained from the bodies of dead organisms.


9. Explain the process of formation of petroleum ? Name two places in India where it is found.

Explanation:

The breakdown of aquatic plant and animal remnants produces petroleum. Petrol is extracted from oil wells in Assam and Bombay High in India.


10. What does "fractional distillation" mean? What is the underlying premise of it?

Explanation:

Petroleum is a blend of several hydrocarbons with varying boiling points. The boiling point rises together with the number of carbon atoms. Fractional distillation, which uses this characteristic to separate the various parts of petroleum, is employed to accomplish this.


11. What exactly are "Petrochemicals"? Explain the usage of petrochemicals derived from petroleum.

Explanation:

Petrochemicals are useful substances obtained from petroleum. They are used in the manufacture of detergents, fibres, polyethylene and other plastics.


12. Which Indian organisation offers individuals advice on how to conserve gasoline or diesel? What advice do they offer?

Explanation:

 In India, the Petroleum Conservation Research Association (PCRA) advises people how to save petrol/diesel while driving.
Their tips are :

* Drive at a constant and moderate speed.

* Switch off the engine at traffic lights.

* Ensure correct tyre pressure.

* Ensure regular maintenance of the vehicle.