by Irfan Ahmad January 29, 2016, 3:41 pm in Jokes A science teacher tells his class, Oxygen is a must for breathing Leave your vote 0 points Upvote Downvote Total votes: 0 Upvotes: 0 Upvotes percentage: 0.000000% Downvotes: 0 Downvotes percentage: 0.000000% See more Previous article A teacher asked her students to use the word beans in a sentence Next article Camping Leave a Reply Cancel reply Connect with: Your email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ