Talk to your parents why we do not see many sparrows in and around our house​

Scientists consider mobile radiation the major culprit for the disappearance of sparrows. Birds navigate by sensing the earth's magnetic fields and mobile radiations are known to disturb them and interfering with bird's ability to move around. so we don't find any sparrows in and around our house. hope this helps you.

28. evolution

29. environment, survive, offspring  

explanation:

inverse v=i*r

nice nice