Water Pollution

What is the primary source of plastic pollution in oceans and rivers?

• Industrial waste

• Household garbage

• Agricultural runoff

• Oil spills

What is the most common cause of oil pollution in oceans?

• Oil drilling

• Oil spills from factories

• Natural oil seepage

• Oil spills from ships

Which of the following is a human activity that contributes to water pollution?

• Photosynthesis

• Recycling

• Using pesticides

• Planting trees

How does plastic pollution impact marine animals?

• It provides a source of food

• It improves their habitat

• It increases their population

• It can entangle and suffocate them

What is the most effective way to reduce plastic pollution in oceans?

• Recycling plastic materials

• Dumping plastic waste into rivers

• Burning plastic waste

• Using more plastic products

What is the primary source of mercury pollution in water bodies?

• Volcanic eruptions

• Industrial emissions

• Agricultural runoff

• Household waste

Which of the following is a natural cause of water pollution?

• Industrial waste

• Oil spills

• Volcanic eruptions

• Sewage discharge

What happens when chemicals from fertilizers run off into rivers and lakes?

• Fish populations increase

• Water becomes cleaner

• Algae blooms occur

• Plants die off

What is the main effect of water pollution on aquatic ecosystems?

• Enhanced habitat

• Increased biodiversity

• Improved water quality

• Harm to fish and other organisms

Which of the following is NOT a freshwater ecosystem?

• River

• Ocean

• Pond

• Lake