Fill in the blank with appropriate words.
(i) Major cuases of biodiversity losses called as………..
(ii) Amazon rain forest is being cut and cleared for cultivating ………. Or for conversion of grassland for raising……….
(iii) Passenger pigeon has been become extinct due to............
(iv) When a species becomes extinct the plant and animal species associated with it in............ way also become extinct.

Answer

(i) Evil quartet
(ii) Soyabeans, Beef cattle
(iii) Over-exploitation
(iv) Obligatory