Top 10 Major Changes On Earth During Lockdown [quality of air,water and lifestyle].

HI friends here in this video i have explained how earth gets benefited through lockdown period... Do watch it and tell me how u feel about my video in the comment section below.

1.How Our Body Fights Against Any Virus?| IMMUNITY? :-
https://youtu.be/9PlhoVj62us

2.HOW MONEY IS CIRCULATED IN SOCIETY, What is CRR, What is money multiplier,How banks get money:-
https://youtu.be/3ibQI7EZ1so

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