THE WATER IN OUR PLANET

What does the term Hydrosphere refer to?

• All the land on Earth
• All the water on Earth
• The atmosphere of Earth
• The underground layers of Earth

What percentage of the Earth's surface is covered by land?

• 25%

• 5%

• 75%

• 100%

How much of the Earth's surface is covered by water?

• 25%

• 50%

• 75%

• 100%

What percentage of the Earth's water is salt water?

• 3%

• 25%

• 50%

• 97%

What percentage of the Earth's water is fresh water?

• 1%

• 3%

• 25%

• 97%

Less than 1% of the Earth's water is:

• Salt water
• Fresh water
• Drinkable water
• Glacial water

Which of the following is NOT a fresh body of water?

• River
• Glacier
• Reservoir
• Ocean

What is a river's main characteristic?

• It's a large body of salt water.
• It flows into a lake, sea, or ocean.
• It's a man-made body of water.
• It's a solid state of water.

What stops the water from flowing in reservoirs?

• Ice caps
• Dams
• Glaciers
• Rivers

Which bodies of water are classified as salt bodies?

• Rivers and lakes
• Oceans and seas
• Glaciers and ice caps
• Reservoirs and dams