The text with and without the repetition of the word 'BIG':

TEXT 1: WITH THE REPETITION OF THE WORD 'BIG': ❌

Tanzania is the BIGGEST country in East Africa. It has BIG fertile land in which farmers get BIG harvest. The country also has BIG land for livestock keeping. Livestock keepers enjoy grazing in this BIG land. Tanzania is also famous for its BIG national parks like Katavi National Park, Serengeti National Park and others which attract BIG number of tourists in the country. 

TEXT 2: WITHOUT REPETITION OF THE WORD 'BIG': ✔️

Tanzania is the BIGGEST country in East Africa. It has LARGE fertile land in which farmers get GREAT harvest. The country also has VAST land for livestock keeping. Livestock keepers enjoy grazing in this AMPLE land. Tanzania is also famous for its HUGE national parks like Katavi National Park, Serengeti National Park and others which attract ENORMOUS number of tourists in the country. 

      

                    - The end of the story -