Water Pollution & Waste Management Assessment

What is the definition of water pollution?

• Excessive use of water resources

• Contamination of water with unwanted and harmful substances

• Addition of nutrients to the soil

• Removal of impurities from water

What are the most serious water pollutants called?

• Organic wastes

• Nutrients

• Pathogens

• Chemical wastes

Which of the following is a major cause of Eutrophication in water bodies?

• Oil spills

• Industrial waste

• Fertilizers rich in nitrates and phosphates

• Radioactive waste

What is a common effect of chemical waste in water bodies?

• Boosts fish population

• Increases oxygen levels

• Kills aquatic plants and animals

• Promotes the growth of beneficial bacteria

Which of the following plants is considered an alien species that harms indigenous water plants?

• Seaweed

• Water lily

• Hyacinth

• Lotus

Pathogens in water are disease-causing agents that mainly come from domestic sewage and animal excreta.

• True

• False

Chemical waste is only harmful to aquatic life, not humans.

• True

• False

Eutrophication is beneficial because it increases the amount of oxygen in the water.

• True

• False

Plastic waste can cause blockage in waterways and drainage systems.

• True

• False

Burning waste can be a method of energy recovery.

• True

• False