Water on Earth

What is the hydrosphere?

• The amount of salt water on Earth

• The amount of fresh water on Earth

• The total volume of water on Earth

• The amount of solid water on Earth

What is salinity?

• A mineral that can be found in rivers and lakes

• The amount of dissolved salt in a given body of water

• A mineral that can be found in oceans

• The amount of drinking water on Earth

97% of the total amount of water on Earth is fresh water

• True

• False

Fresh water can only be found in a liquid state

• True

• False

When it comes to fresh water, 70% is solid and found in glaciers and permanent snow

• True

• False

What is a river?

• A body of water that constantly flow from high points to low points

• A body of water with a high level of salinity

• A piece of ice that breaks off from glaciers

• A large body of permanent ice

What is a lake?

• A body of water that generally starts in mountains and flows into an ocean

• A piece of ice floating on a sea

• An underground water body

• A body of mainly fresh watersurrounded by land

What are glaciers?

• Bodies of mainly fresh water surrounded by land

• Large bodies of permanent ice

• Bodies of water that constantly flow from high points to low points

• Masses of tiny suspended drops of water.

What do we mean by "underground water bodies"?

• Fresh water bodies that come from precipitations and rivers which filter down the earth.

• Ice bodies floating on a sea

• Large bodies of permanent ice

• Bodies of water that are made up of water that comes from rivers

Depth determines the characteristics of aquatic ecosystems

• True

• False