Q. The following Table shows the total power shortage in India from $1991-1997$. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis

S. No.	Year	Shortage (%)
$1$	$1991$	$7.9$
$2$	$1992$	$7.8$
$3$	$1993$	$8.3$
$4$	$1994$	$7.4$
$5$	$1995$	$7.1$
$6$	$1996$	$9.2$
$7$	$1997$	$11.5$

Q. Explain why fossil fuels are exhaustible natural resources.

Q. Fill in the blanks:

Q. Describe characteristics and uses of coke.

Q. Explain the process of formation of petroleum.

Q. Discuss the formation of coal in detail. What is this process called?

Q. Name the petroleum product used for surfacing of roads.

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

Q. Tick True/False against the following statements.
(a) Fossil fuels can be made in the laboratory. (T/F)
(b) CNG is more polluting fuel than petrol. (T/F)
(c) Coke is almost pure form of carbon. (T/F)
(d) Coal tar is a mixture of various substances. (T/F)
(e) Kerosene is not a fossil fuel. (T/F)