Pictures of some phenomena are given below. Think and write which of these happen naturally, and which harm us because they are not natural: Phenomena which do not harm humans or nature are desirable, but those which harm humans or nature are undesirable.

The above pictures can be categorised as desirable and undesirable as follows: What do you see happening? Desirable or undesirable a) Flower development Desirable b) Plant grows into a tree Desirable c) Deforestation Undesirable d) Throwing of plastic bags and bottles Undesirable e) Air pollution Undesirable f) Noise pollution Undesirable

Shade 3 5 in the following boxes.

Given, We know that, A fraction is a part of a whole. Fraction = Shaded parts of a whole Total number of parts We can see that the given object is equally divided into 5 parts. The total number of parts = 5 Shaded parts of whole = 3 The number of boxes we need to shade is 3 . Hence, the required answer is shown above.

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DRILL LESSONS In Mental Arithmetic BOOK 3>Chapter 3 - Practice Paper>Exercise 1

K K Dubey Solutions for Chapter: Practice Paper, Exercise 1: Exercise 1

Author:K K Dubey

K K Dubey Mathematics Solutions for Exercise - K K Dubey Solutions for Chapter: Practice Paper, Exercise 1: Exercise 1

Attempt the free practice questions on Chapter 3: Practice Paper, Exercise 1: Exercise 1 with hints and solutions to strengthen your understanding. DRILL LESSONS In Mental Arithmetic BOOK 3 solutions are prepared by Experienced Embibe Experts.