Solution to Extended Learning – Activities and Projects Question 3 of NCERT Class 8 Science Chapter 4 Combustion and Flame

3. Survey 100 houses in your area. Find the percentage of households using LPG, kerosene, wood and cattle dung as fuel.

Answer:

A sample table for an urban area is shown below:

FuelsPercentage of households
LPG75
Kerosene24
Wood1
Cattle dung0

A sample table for a rural area is shown below:

FuelsPercentage of households
LPG30
Kerosene40
Wood20
Cattle dung10

As you can see LPG is mostly used in urban areas and the uses of harmful fuels like wood and cattle dung is less. In rural areas, kerosene is mostly used and some households still use wood and cattle dung.

“Survey 100 houses in your area. Find the percentage of households using LPG, kerosene, wood and cattle dung as fuel.” – Solved.

Related Links:

Solution to Extended Learning Problem 1
Solution to Extended Learning Problem 2
Solution to Extended Learning Problem 4
Solution to Extended Learning Problem 5
Solution to Activity 4.1
Solution to Activity 4.2
Solution to Activity 4.3
Solution to Activity 4.4
Solution to Activity 4.5

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