A mobile phone is a small portable radio telephone. The mobile phone can be used to communicate over long distances without wires.Since the 2010s, more people use smartphones than the old kind of mobile phone, which are called feature phones.
This year, COVID-19 created an enormous challenge to learning on a global scale -- and one that continues to affect our daily experience more than eight months later. eLearning’s mobile-friendly nature has risen to meet that challenge as an unprecedented number of students and professionals were forced into the virtual space by stay-at-home orders and closures of in-office and in-school environments. Here’s how the role of mobile learning has proved critical in the time of COVID.
Charcoal can be used as a reducing agent in extraction of metals. Charcoal is almost entirely made of carbon. When heated with carbon, metal oxides are reduced to form pure metal along with oxides of carbon.