Water in the World - Pop Quiz I

What percentage of the world's water is too salty to drink?

• 95%

• 97%

• 99%

• 85%

What percentage of the world's water is locked up in glaciers and ice caps?

• 1%

• 2%

• 3%

• 5%

What percentage of the world's water is available for drinking, agriculture, industry, and nature?

• 5%

• 2%

• 1%

• 10%

What percentage of the Earth is made up of water?

• 70%

• 72%

• 75%

• 80%

How many people do not have access to drinking water?

• 500 million

• 1 billion

• 1.5 billion

• 2 billion

What happens to water when it freezes?

• It contracts

• It evaporates

• It expands

• It stays the same

Which molecule is the second most common on Earth?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Water (H2O)

What percentage of the water on Earth is ocean water?

• 90%

• 95%

• 97.5%

• 99%

What percentage of Earth's water is freshwater?

• 5%

• 3%

• 1%

• 10%

What percentage of the 2.5% freshwater is surface water (lakes and rivers)?

• 10%

• 0.3%

• 2%

• 1.5%