u/Aggravating-Key4444

https://preview.redd.it/rkzhhcf9c30h1.png?width=966&format=png&auto=webp&s=e4687cfa9e1e823d090188794c652ac58c061f85

reposting here since it got deleted in main subreddit

i wonder why 😔😔

eco question

why is d correct? b and c are clearly stated in tb, a is wrong obviously, and by logic d should be wrong too-- but it was present in all options so i ticked. can someone pls explain

i keep coming across it in mocks, is it in ncert? for eco? or maybe it was in an old ncert and is now deleted? can someone pls help