World Water Day - Round 2

What percentage of the earth's surface is covered in water?

• 10%

• 30%

• 50%

• 70%

What is the most abundant element in the earth's crust?

• Oxygen

• Hydrogen

• Carbon

• Nitrogen

Which of the following is NOT a type of water pollution?

• Thermal pollution

• Chemical pollution

• Noise pollution

• Physical pollution

Which of the following is the largest source of freshwater in the world?

• Rivers and streams

• Lakes and reservoirs

• Groundwater

• Glaciers and ice caps

What percentage of the world's population lacks access to clean drinking water?

• 5%

• 15%

• 25%

• 35%

What is the name of the process by which water evaporates from plants?

• Transpiration

• Precipitation

• Condensation

• Sublimation

Which of the following is a method of water conservation?

• Turning off the tap while brushing teeth

• Taking longer showers

• Using the dishwasher instead of washing dishes by hand

• Watering the lawn every day

What is the term for the process by which water is purified for drinking?

• Desalination

• Filtration

• Chlorination

• Fluoridation

Which country has the highest per capita water usage?

• Canada

• United States

• Australia

• Saudi Arabia

What is the largest ocean in the world?

• Pacific Ocean

• Atlantic Ocean

• Indian Ocean

• Southern Ocean