Q6 of 17 Page 93

Explain the process of formation of petroleum on Earth?

Certain organisms named plankton were found in seas and forests. Their remnants and dead bodies were buried deep into the earth for a very long time (million of years). Under very high temperature and pressure for such a long time, these fossils were transformed into petroleum.


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4

Fill in the blanks.

i. ___________ was used in manufacture of steel.


ii. The biproduct of coal used in synthetic dyes and paints is ____________.


iii. Coal was formed in areas where large amounts of ______________was buried under


the earth.


iv. __________gas which causes climate change and global warming.

 5

Name the petroleum products used for roads surfacing.

 7

Project Work

Compare a CNG run vehicle with that of a diesel run vehicle. What difference do you notice in both cases with respect to pollutants released, level of pollution and cost of fuel? Prepare a report on your findings. You can take the help of a driver to make a report on your observation.


 8

Project Work

Choose five families of your neighbor hood, collect the information about the measures that they adopt to conserve energy resources in transport and cooking.



Make a report on your observation