Water, Soil, and Environmental Pollution
ICSE · Class 11 · Environmental Science
Practice quiz for Water, Soil, and Environmental Pollution — ICSE Class 11 Environmental Science. MCQs and questions with answers to test your preparation.
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Quick Quiz: Water, Soil, and Environmental Pollution
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What is the correct definition of water pollution?
What is an aquifer?
Which statement about the hydrological cycle is correct?
Which of the following is a non-point source of water pollution?
Sample Questions
Which water bodies are included in surface water?
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Rivers,Lakes,Ponds
Surface water includes rivers, lakes, ponds, streams, and reservoirs. Aquifers are underground water-bearing layers, so they are not surface water.
Which of the following are point sources of water pollution?
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Industrial discharge pipes,Sewage treatment plants,Combined sewer overflows
Point sources come from clearly identifiable outlets. Industrial discharge pipes, sewage treatment plants, and combined sewer overflows are all point sources.
What is the main cause of eutrophication?
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Increase in nutrients, mainly nitrates and phosphates
Eutrophication happens when water receives too many nutrients, especially nitrates and phosphates. This causes excessive growth of algae and aquatic plants.
Which effect is caused by eutrophication?
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Oxygen depletion in water bodies
Eutrophication leads to excessive algae growth, which blocks sunlight and lowers oxygen levels in water. This harms aquatic life.
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