Ubuntu: ethernet/internet and Wifi not working on Ubuntu 16,04


I am new to ubuntu and I have ubuntu 16.04 on my laptop and it is not detecting any wifi signals (which i can detect on windows) , also when I plug in the ethernet cable , it doesnt show that ethernet is connected even when the ethernet cable blinks.

here are the screenshots when i used ifconfig -a and sudo lshw commands on terminal.

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Please help me , Thanks in advance.

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