Rakesh and Rajesh are 8th class students. They are fond of watching cricket match, particularly
when it is played between Australia and India. They observed that most of the players, when they are in the field, apply a cream on their face. They did not know its reason. One day they asked this question to their teacher. The teacher thought it to be a good question and explained the reason for applying this cream to the whole class.
Based on this paragraph, answer the following questions:
(i) In your opinion, what explanation did the teacher offer to the students in the class?
(ii) Why is small ozone layer on top of the stratosphere considered crucial for human survival?
(iii) Write any two values displayed by Rakesh and Rajesh and their class teacher?

Explanation

(a) Sun lotion absorbs a part of ultraviolet radiation emitted by sun and thus causing less damage to skin.
(b) Ultraviolet rays from sun are absorbed to an extent by thick layer of ozone in the atmosphere. By and by this layer is becoming thin and its a danger for human beings.
(c) Rakesh and Rajesh shown Curisity and keenness for knowing scientific facts. Teacher enjoyed explaining scientific facts to all students.