A C Sehgal Solutions for Exercise 3: EXERCISES

Author:A C Sehgal

A C Sehgal Science Solutions for Exercise - A C Sehgal Solutions for Exercise 3: EXERCISES

Attempt the practice questions from Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. Living Science 8 solutions are prepared by Experienced Embibe Experts.

Questions from A C Sehgal Solutions for Exercise 3: EXERCISES with Hints & Solutions

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q E

List five things that you can do to help in preventing an energy crisis.

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q E

How is CNG obtained? What are its main uses?

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 1

If a resource can be replaced within ten years by natural processes, would you classify it as renewable or non-renewable?

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 2

All renewable resources are inexhaustible. Do you agree? Give reasons.

HARD
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 3

All combustible substances are not fuels. Why?

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 4

Can fossil fuels be made in the laboratory?

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 5

Conservation of resources means avoiding their wasteful use. Does this definition cover all aspects of conservation? Explain.

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 6

In a petroleum well, crude oil is found above water. Which two properties of petroleum make it possible to form a layer of it above water?