Pre Test Water Pollution

What is the definition of water pollution?

• The contamination of water bodies with harmful substances

• The natural purification process of water

• The removal of pollutants from water

• The natural flow of water in rivers and lakes

Which type of pollution is characterized by the introduction of non-native substances like oil and heavy metals into water bodies?

• Thermal pollution

• Biological pollution

• Chemical pollution

• Radioactive pollution

Which household chemical is most commonly found in wastewater and contributes to water pollution in Indonesia?

• Cooking oil

• Baking soda

• Detergents

• Sugar

The Citarum River in Indonesia is heavily polluted. Which type of pollutant is most prevalent in this river?

• Microplastics

• Oil and grease

• Nutrient runoff

• Industrial chemicals

Which of the following household items contributes to chemical waste that can lead to the formation of hazardous chlorinated compounds in water?

• Soap

• Bleach

• Vinegar

• Baking powder