State two precautions that should be taken in using fossil fuels to avert the energy crises ?
(i) Fossil fuels should be used only when no alternative source of energy is available.
(ii) Wastage of fossil fuels should be prevented in homes, transport and industry. Switch off the engine at traffic lights or at a place where you have to wait,Ensure correct tyre pressure, and Ensure regular maintenance of the vehicle.
What are the harmful effects of using fossil fuels ?
What are petrochemicals ? What are their uses ?
What are the consequences of the green house effect ?
Why is coke considered a better fuel than coal ? Give four reasons.
