Раскройте механизм действия естественного отбора

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2.Writ: true or false.-____________________________________ 
1) The "Guardian" is a broadsheet.-________________________ 
2)Tabloids write a lot about life of celebrites.-________________________ 
3)Broadsheets are usually very reliable information.-_____________________ 
4)Businessmen need tabloids for their work.-__________________________ 
5)one of the Famous Russian broadsheets is called "Megapolis".-__________________ 
6)If you have to write a report on economics, you may find a lot of useful facts in The Times.-___________________________