Water

Question 1

Water exists in three phases on the planet Earth

Answer 1

Ice
Gas
Liquid

Question 2

Special properties of water

Answer 2

H2O 
Hydrogen bonding gives water a charge 
It is a very good solvent 
Carries nutrients, pollution and more 
It can have a high viscosity, making water flow as a mass and creates turbulence

Question 3

What is stratification

Answer 3

Stratification separates warmer surface water from cooler,

denser, deeper water

Question 4

What is the hydrological cycle

Answer 4

Water recycling system on Earth

Must be interpreted in terms of size of the compartments and the rates of exchange

Question 5

4 main hydrological linkages

Answer 5

Lateral - catchment
Longitudinal- river to sea
Vertical up- air
Vertical down- groundwater

Question 6

Longitudinal- river to sea linkage

Answer 6

Estuaries rely on rivers for the supply of nutrients to estuarine and marine ecosystems, clear pollutants and enable fish migration up and down-stream

Question 7

What is a wetland

Answer 7

An area that holds water for all or part of the

time and when wet contains aquatic life

Question 8

Wetland habitats (4)

Answer 8

Fringing zone
Littoral Zone
Euphotic zone- top of the water
Profundal Zone- bottom of the water

Question 9

How is the littoral zone sampled

Answer 9

Sweep net

Question 10

How is the Euphoric zone sampled

Answer 10

Plankton net

Question 11

How is the Profundal zone sampled

Answer 11

Ekman grab

Question 12

What are the linkages in wetlands

Answer 12

the wetland habitat biotic communities, and

ecological processes are linked. This is why plants and animals are used as an indicator of the ecosystems health

Question 13

Habitats and the nutrient cycle

Answer 13

Changes in flow will change habitats and
ecological processes such as retention of organic
matter