The Monthly Techworld Bangladesh - February 2019
English | 106 pages | True PDF | 53.1 MB
English | 106 pages | True PDF | 53.1 MB
Bangladesh is transforming into digital in a faster growth considering the other developing countries of the world. And we become progressively incorporated with technology and the latest electronics devices and services. Cellphones, computers, and other technological products has become our part and percent of daily life. And we cannot ignore its necessity but that must be mined that it contain a number of valuable materials. Such items contain precious metals such as gold, silver, copper, iron, and some other heavy metals, but they can also contain mercury and lead - two of the most hazardous metals to human health.