Spoken English | Articles | Use of A ,An and The | Rubena Ma'am | Doubtnut | 3 PM

The density of KBr is 2.75 g cm^(-3) . The length of the unit cell is 654 pm. Atomic mass of K = 39, Br = 80 . Then what is true about the predicted nature of the solid?

Below there is a conversation between a teacher and student of class 3rd on the topic Air Teacher:What will happen if there is unclean or polluted air in the whole world Student I:Ma'am will not get proper oxygen to breathe in StudentII:There will be no animals ,insectes etc Teacher:So what we will do? Student III:Ma'am for fresh air we have to plant more or more trees and stop using personal vehicle for traveling this interaction shows that students are good in