The Brainliest Answer!
Mobile phone boon can carry  mobile phone with so u cannot miss important calls.
2.if u lot it u   can call directions is good for emergencies. can check u your mails. can be fit in our pocket.
mobile phones a bane
1.they can damage your ear.
2.because of mobile phones youth spoil there life.
3.because raditions it may cause cancer.
4.because of raditions birds may die.
5.while driving if u use it may cause accidents.
2 5 2
i also asked to explain hast is vast
do u know
i dnt know
no problem