Water Pollution Quiz

What is water pollution?

• The contamination of water bodies with harmful substances.

• The increase of water levels in rivers and lakes.

• The natural purification of water through evaporation.

• The process of water freezing into ice.

Which sector is the biggest consumer of global freshwater resources?

• Agriculture

• Industrial

• Residential

• Transportation

What is the leading cause of water degradation worldwide?

• Agricultural pollution

• Oil spills

• Plastic waste

• Radioactive waste

What percentage of the world's wastewater flows back into the environment untreated?

• Exactly 75%

• About 50%

• Less than 20%

• More than 80%

What is the main threat to water quality worldwide?

• Nutrient pollution

• Oil pollution

• Radioactive substances

• Plastic debris

What is point source pollution?

• Pollution from a single, identifiable source

• Pollution from multiple, diffuse sources

• Pollution that affects only groundwater

• Pollution that crosses national boundaries

What is eutrophication?

• The natural filtration of water through soil

• The increase of water temperature in oceans

• The process of water turning into vapor

• A dearth of oxygen in water due to nutrient pollution

What is the primary cause of ocean acidification?

• Radioactive waste

• Plastic waste

• Oil spills

• Absorption of carbon pollution

Which of the following is a major source of oil pollution in seas?

• Natural oil seeps

• Land-based sources like factories and cities

• Volcanic eruptions

• Tanker spills

What is the main cause of illness from contaminated drinking water?

• Waterborne pathogens

• Heavy metals

• Radioactive substances

• Plastic debris