NEET 2021 Model Test Paper 6

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Question : 148 of 180
 
Marks: +1, -0
Choose the correct statement :-
(a) There are working 'Ecosan' toilets in many area of Kerala and Srilanka
(b) In sanitary land fill, solid waste are dumped in a depresion or trench after compaction and covered with dirt everyday
(c) Black foot is disease is caused by Arsenic poisoning
(d) Green house effect is natural phenomenon
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