Home
Class 7
CHEMISTRY
While a teacher was her class about air ...

While a teacher was her class about air and oxygen she emphasized the importance of nitrogen in the atmosphere. A student named Vivek asked the teacher-"What would happen if the percentages of nitrogen and oxygen were interchanged in the atmosphere?" The teacher praised him for the question and explained it. What was the teacher's explanation ?

Text Solution

Verified by Experts

Increased levels of oxygen increase the rate of combustion. Fuel would burn at a faster rate and become dangerous and it will be difficult to extinguish fires. It also would increase the rate of corrosion of metals and increase the rate of respiration which would affect the human system.
Promotional Banner

Similar Questions

Explore conceptually related problems

A student was asked by her science teacher to prepare a true solution. She dissolved the solute in water but forget to record its name. What may be the correct name of the solute ?

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?