Why can a piece of chalk be broken easily into smaller pieces while a coal piece cannot be broken easily ?
Why can a piece of chalk be broken easily while a coal piece can not be broken easily?
Humans are aerobic in nature,that means they can live only in the presence of oxygen,.
But few microorganisms exist in anaerobic conditions,that means they can live with out oxygen..
Then why can't we insert the desired gene of that microorganisms into humans using biotechnology...
If we do so,then human can easily stay without oxygen?
How can we safely keep bar magnet so that they don't lose their magnetic property?