- Which human activity contributes most to river pollution?
Answer: Sewage
Explanation: Untreated domestic and municipal sewage is a major source of pollution in Indian rivers. - Which major Indian river is most affected by pollution?
Answer: Ganga
Explanation: The Ganga faces high levels of pollution due to industrial discharge, sewage, and religious offerings. - Which sector’s waste significantly affects river water quality?
Answer: Industrial
Explanation: Industries release harmful chemicals and untreated effluents into rivers, contaminating water sources. - Which agricultural practice leads to river contamination?
Answer: Pesticides
Explanation: The excessive use of pesticides and fertilizers leads to runoff, which pollutes nearby rivers. - Which property of rivers helps in self-cleansing when water flow is high?
Answer: Dilution
Explanation: When streamflow is high, rivers can naturally dilute and assimilate pollutants, reducing their concentration. - Which urbanization-related factor worsens river pollution?
Answer: Population
Explanation: Increasing population leads to higher waste generation, which ultimately pollutes rivers. - Which Indian government program was launched in 1985 to clean the Ganga?
Answer: GAP
Explanation: The Ganga Action Plan (GAP) was initiated in 1985 to reduce pollution levels in the river. - Which plan was introduced in 1995 to clean multiple rivers in India?
Answer: NRCP
Explanation: The National River Conservation Plan (NRCP) was launched to improve the water quality of polluted rivers. - Which toxic heavy metal is commonly found in industrial wastewater?
Answer: Mercury
Explanation: Industrial waste often contains toxic metals like mercury, which accumulate in river ecosystems. - Which major impact of river pollution affects aquatic ecosystems?
Answer: Eutrophication
Explanation: Excessive nutrient runoff leads to eutrophication, which depletes oxygen levels and harms aquatic life.
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