4.1 Water in our Worlds Flashcards
How much of earth is covered in water?
71%
How much of earths water percentage is salt?
97.2%
How much of earth’s fresh water is solid?
2.2%
How much of earth’s fresh water is liquid?
0.6%
True or False: Fresh water means that the water is drinkable
False
What does untreated fresh water contain?
Dissolved chemicals and microorganisms
What is the salinity of the world’s salt water?
About 3.5%
What is salinity?
The average salt concentration in water
Where can salt water be found?
Swamps, Marshes, Lakes and Estuaries
How are salt swamps and marshes created?
When ocean water fills low lying areas or depressions
What are salt swamps dominated by?
They have many trees and dominated by grass
Where can you find fresh water?
Glaciers, Lakes, Marshes, Bogs and Swamps
What do wetlands do?
They filter fresh water and moderate water levels during floods and droughts
Swamps are dominated by?
Trees
Marshes are dominated by?
Grass
Bogs are dominated by?
Moss
The 3 states of Water are?
Solid, Liquid, and Gas
Examples of solid forms of water…
Snow, Glaciers and Ice Caps
Examples of gas forms of water…
Vapour, Fog and Clouds
What is meltwater?
Water that is melted off of a glacier
What is transpiration?
When, almost all of the water that is inhaled by the roots passes out through the leaves. Plants exhale a lot of moisture into the air
True or False: Humans and Animals inhale a lot of water vapour
True
True or False: Plants absorb water from moisture in the air just like the head-stander beetle
True
