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What is one sign that a river might be polluted? A. Strong smell, foam, or dead fish / B. Cold water and rocks / C. Many plants on the riverbank / D. A slightly different colour
A
What is “groundwater”? A. Water that comes from rainfall / B. Water stored underground in soil or rocks / C. Water found in oceans
B
What can communities do to prevent water pollution?
Improve waste management and wastewater treatment, raise awareness, reduce plastic waste and use, encourage sustainable agriculture...
What does the pH value of water tell us? A. The amount of salt in it / B. The oxygen level / C. The temperature / D. The acidity or alkalinity of the water
D
What happens during “eutrophication”? A. Too many nutrients cause algae to grow quickly / B. Fish population increases / C. The water becomes very cold / D. Rain cleans all the pollution
A
Which international day focuses on protecting clean water? A. Earth Day / B. World Water Day / C. World Food Day / D. Ocean Day
B
Microplastics can enter the food chain through contaminated water sources. True / False.
True. Microplastics can be consumed by aquatic organisms and enter the food chain.
Thermal pollution refers to the presence of heat-resistant bacteria in water. True / False
False. Thermal pollution occurs when hot or cold water is dumped into water, changing its temperature, often from industrial processes.
Which of the following diseases is most commonly associated with contaminated water? A. Tuberculosis / B. Asthma / C. Cholera / D. Diabetes
C
Which heavy metal is most commonly found in polluted water and can cause neurological damage? A. Iron / B. Lead / C. Sodium / D. Calcium
B
Which type of pollutant is most commonly associated with algal blooms? A. Heavy metals / B. Plastic waste / C. Pathogens / D. Nitrates and phosphates
D
What method is used in wastewater treatment to remove solid particles from water? A. Filtration / B. Combustion / C. Distillation / D. Evaporation
A
What is an industrial source of water pollution? A. Solar panels / B. Chemical waste discharge / C. Wind farms / D. Public parks
B
Agricultural runoff is one major source of pollution in rivers and lakes. What is it?
Water from farms that flows over land due to rain or irrigation, carrying pollutants like pesticides and fertilizers.
Which of these is a natural source of water pollution? A. Oil spills from ships / B. Plastic bottles / C. Animal waste from farms
C
What is "sewage"? A. Clean rainwater / B. Wastewater from homes and factories / C. Water used for farming
B