CRT refers to the cathode ray tube, which is the glass that you can touch in front of your computer monitor or television screen. Environmentalists have revealed that this glass contains lead, and if thrown in the landfill, it can release highly toxic fumes in the air and soil.
In today’s world the word ‘communication’ plays an important role in sharing information among each others. Some of the popular means of communication are mobile phones, internet and so on. In recent trends there are many means of communication where one can share information and recently the mobile phone