How much of the Earth is covered in water?

• 70-71%
• 97%
• 3%
• 2%

What percentage of Earth's water is salt water?

• 70-71%
• 97%
• 3%
• 2%

What percentage of Earth's water is available in rivers, lakes, underground, and in the atmosphere?

• 70-71%
• 97%
• 3%
• 1%

Put the types of water in order from the greatest amount on Earth to the least amount on Earth.

• oceans, rivers, glaciers
• glaciers, rivers, oceans
• rivers, glaciers, oceans
• oceans, glaciers, rivers

What percentage of ocean water is water?

• 3.5%
• 87%
• 96.5%
• 1%

What percentage of saltwater is made of salts?

• 3.5%
• 96.5%
• 70%
• 2%

What is salinity?

• the amount of matter in a specific volume
• the degree of how hot or cold something is
• the landforms of the continent or the oceans
• how much salt is dissolved in a liquid

What is density?

• the amount of salt dissolved in a liquid
• the amount of matter in a specific volume
• how hot or cold something is
• a large piece of frozen freshwater

What is the ocean's conveyor belt?

• water freezing at the poles
• water moving from the surface of the ocean to the depths of the ocean
• water melting at the equator
• waves moving on the coastline

The salinity in the ocean can be increased by ____

• freezing the water in the oceans near the poles
• melting icebergs as the move to warm areas on the conveyor belt