Fossil Fuels

Q.

Why are fossil fuels classified as non-renewable sources of energy?

Q.

What steps would you suggest for the judicious use of fossil fuels?

Q.

How the formation of fossil fuels takes place?

Q.

Explain why fossil fuels are an exhaustible natural resource.

Q.

Natural gas is a ______ (renewable/non-renewable) source of energy.

Q.

Which of the following is not a fossil fuel?
(a) coal (b) petroleum gas (c) biogas (d) natural gas

Q.

Which of the following is not a renewable source of energy?
(a) wind (b flowing water (c) fossil fuels (d) fuel wood

Q.

Which of the following are fossil fuels?

1. Crude oil

2. Coal

3. Natural gas

4. None of these

Q.

Which of the following is not classified under a fossil fuel?

1. Petroleum

2. Nuclear energy

3. Oil

4. Natural gas

Q.

The main constituent of petroleum gas is :
(a) methane (b) ethane (c) butane (d) propane

Q.

Name the petroleum product used as fuel for stoves, lamps, and jet aircraft.

Q.

Explain the process of the formation of petroleum.

Q. A is used to rotate the magnet inside the generator.

1. coil
2. turbine
3. boiler

Q. Name two fossil fuels.

Q. Coal is said to be formed from the wood of trees. Why then is coal considered to be a non-renewable source of energy whereas wood is a renewable source of energy?

Q. Statement 1: Coal, petroleum and natural gas are called 'fossil fuels'.

Statement 2: Coal, petroleum and natural gas are formed as a result of decayed plants and animals being subjected to conditions of high temperature and pressure for a prolonged period of time.

1. Statement 1 and Statement 2 are correct, but statement 2 is not the reason for statement 1.

2. Statement 1 is correct and statement 2 is incorrect.

3. Statement 1 and statement 2 are correct , statement 2 is the reason for statement 1.

4. Both statements are incorrect.

Q.

What are the possible harmful effects of fossil fuels?

1. Carbon dioxide produced from burning of fossil fuels causes greenhouse effect which in turn contributes to global warming.
2. Smoke produced from burning of fossil fuels is a major source of pollution.
3. Fossil fuels are difficult to find and many accidents happen in the process of obtaining coal from coal mines.
4. All of the above

Q. The process of separating crude petroleum oil into more useful fractions is done by the process of:

1. Destructive distillation
2. Electrolysis
3. Hydrolysis
4. Fractional distillation

Q. What are the issues faced in using fossil fuels?

1. Fossil fuels are difficult to extract.
2. Burning of fossil fuels causes pollution.
3. Burning of fossil fuels leads to greenhouse effect and global warming.
4. Burning of Fossil Fuels cannot provide sufficient energy.

Q.

What are the constituents of natural gas?

Q.

The burning of fossil fuels releases (nitrogen / carbon dioxide) into the atmosphere.

Q. Fossil fuels are formed from the living organisms which were buried inside the Earth for millions of years.

1. False
2. True

Q.

Which of the following is not a fossil fuel?
(a) LPG
(b) Natural gas
(c) Biogas
(d) CNG

Q.

Carbon monoxide is formed during the complete combustion of fuel.

1. True
2. False

Q.

How can the pollution caused by fossil fuels be decreased?

Q. Compare the sun and the fossil fuels as the sources of energy.

Q. The ultimate source of energy stored in fossil fuels is :
(a) moon (b) earth (c) sun (d) sea

Q. What are the physical characteristics of petroleum?

1. Dark coloured
2. Viscous
3. Foul smell
4. Lighter than water
5. All of these

Q. is a conventional source of energy and it has a limited reserve also.

1. Coal
2. Solar
3. Wind

Q.

Why is the leakage of LPG detected easily although it is odourless? State the steps to be taken in case its leakage is detected in the kitchen.