Exercise

Author:Dr. Yogita Gupta & Deepika Sharma

Dr. Yogita Gupta Science Solutions for Exercise

Simple step-by-step solutions to Exercise questions of Coal and Petroleum from Focus Science in Everyday Life. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise with Hints & Solutions

EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Exercise>Q 1

_____ is an example of inexhaustible natural source.

EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Exercise>Q 2

Coke is almost a pure form of _____.

EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Exercise>Q 3

Petroleum was formed by slow decomposition of _____.

EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Exercise>Q 4

_____ is a clean and non-polluting fuel.

EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Exercise>Q 5

To save petrol/diesel, one must drive _____.

MEDIUM
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Exercise>Q 5

What is natural gas? How is it different from petroleum? 

MEDIUM
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Train Your Brain>Q 1

Which is a better fuel: CNG or LPG? Why?

MEDIUM
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 5 - Coal and Petroleum>Train Your Brain>Q 2

In modern times, fossil fuels are called 'necessary evil'. Why?