railway RPF SI Mock Test Series 2024 General Knowledge Ecology and Environment Ecology and Functions of an ecosystem

ନିମ୍ନଲିଖିତ ମଧ୍ୟରୁ କେଉଁଟି ହେଉଛି ବିଶ୍ୱର ବୃହତ୍ତମ ଇକୋସିଷ୍ଟମ୍?

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ମହାସାଗର

2

ତୃଣଭୂମି

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ଜଙ୍ଗଲ

4

ପର୍ବତଗୁଡିକ

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