Q: 12 (SSC/NA)
question_subject:
Science
question_exam:
SSC
stats:
0,58,64,15,24,58,25
keywords:
{'water pollution': [2, 2, 0, 0], 'weeds': [0, 0, 1, 0], 'water hyacinth': [2, 0, 0, 0], 'elephant grass': [1, 0, 0, 1], 'parthenium': [1, 0, 0, 0], 'industrial affluents': [1, 0, 0, 0]}
Option 1: Parthenium is not known for its ability to check water pollution caused by industrial affluents.
Option 2: Elephant grass may have certain uses, but it is not specifically known for its ability to check water pollution caused by industrial affluents.
Option 3: Water hyacinth has been found useful in checking water pollution caused by industrial affluents. It is capable of absorbing heavy metals and other pollutants from contaminated water, helping to improve water quality.
Option 4: Both option 1 and option 2 are incorrect as they do not have the ability to check water pollution caused by industrial affluents. Therefore, the correct answer is option 3, water hyacinth. It is a useful plant in mitigating water pollution.