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water resources(20)
surface water(19)
climate change(5)
seasons(4)
china(3)
flooding(3)
india(3)
rain(3)
rivers(3)
water management(3)
agricultural irrigation(2)
fresh water(2)
hygiene(2)
psychometrics(2)
questionnaires(2)
sanitation(2)
spring(2)
adsorption(1)
age groups(1)
agricultural land(1)
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