Fresh And Saltwater Systems Unit Test

Question 1

List factors of water quality

Answer 1

Taste and odour 
Turbidity and colour
Toxic substances and other pollutants
Bacteria 
Hardness or material content 
PH ( acidic or basic )
Dissolved oxygen 
Solids including floating materials 
Dissolved solids

Question 2

How is water distributed on the earth for

Answer 2

3% is fresh
0.0009% is in the atmosphere
97% is salt

26% is land
74% is water

Question 3

What is the difference of between hard and soft water

Answer 3

Hard water had more mineral content then soft water

Question 4

Distillation

Answer 4

A solution Is boiling and the water evaporates and leaves salt behind the water vapour turns to fresh water droplets and goes to a different glass

Question 5

Reverse osmosis

Answer 5

Forcing salt water through a filter or membrane with holes small enough fir water to pass through but not salt

Question 6

What causes waves and how forget form

Answer 6

Waves are changes in patterns that move along the waters surface. Most waves are caused by winds

Question 7

What effect does water have on shorelines

Answer 7

The force of waves crashing against a shoreline can shape the shore

Question 8

What are tides and what causes them

Answer 8

The gravitational force of the moon is the main cause for ocean tides on earth

Question 9

The 1st stream characteristics

Answer 9

A river or stream may start in the mountains where a glacier is melting

Question 10

2bd stream characteristics

Answer 10

In early stages it flows swiftly and straight

Question 11

3rd stream characteristics

Answer 11

As the ground becomes more level the water slows down

Question 12

4th stream characteristics

Answer 12

At the mouth the river enters a lake or ocean

Question 13

What is chemical weathering

Answer 13

Erosion can occur because of chemical weathering. Caves form when rainwater and streams dissolve limestone and other rocks. As it sits there it gradually dissolved more and more of the rock

Question 14

What makes a watershed

Answer 14

A water shed is all the area of land that drains into one main lake or river

Question 15

What is the theories of continental drift and plate tectonics

Answer 15

Plates move ver slowly across the earth because of convection currents within earth

Question 16

How do these theories explain geological feature on the ocean floor

Answer 16

Theses movement have shaped the geological features on the ocean floors and many of those on continents

Question 17

Moralines

Answer 17

Form from rock and gravel build up along side of a glacier

Question 18

Eskers

Answer 18

Form when parts of glaciers melt tunnels under ice

Question 19

Drumlins

Answer 19

Small hills in a teardrop shape form when a glacier moves over moralines

Question 20

Kettle lakes

Answer 20

Formed when large chunks of ice left when glaciers melted away

Question 21

Delta

Answer 21

Repeated glaciation has worn them down

Question 22

What effect does large bodies of water have On the climate

Answer 22

The main effect that it has on the climate in an area is to prevent extremes I. Temperatures

Question 23

What effect does ocean currents have on the climate

Answer 23

Currents can carry warm water to colder areas

Question 24

What is diversity

Answer 24

Variety of differ t kinds of species living in A area

Question 25

In what ways do humans use water?

Answer 25

Agriculture 73% Industry 22% Domestic 5%

Question 26

Potable water

Answer 26

Water humans can drink safety

Question 27

Our of fresh water ________% is ice,groundwater,lakes rivers and wetlands

Answer 27

Ice 77% Groundwater 22% Lakes,rivers and wetlands 1%

Question 28

What is the basic saltwater solution?

Answer 28

96. 5% water | 3. 5% dissolved salts

Question 29

How are tsunamis formed

Answer 29

Earthquakes can create huge ocean waves called tsunamis

Question 30

Stream characteristics

Answer 30

Include the rate of water flow and slope of streams bed

Question 31

What do hot springs do?

Answer 31

Hot springs bring dissolved sediments up within the earth and deposit them on the surface

Question 32

Two plants moving toward eachother meet

Answer 32

Ocean trench

Question 33

Molten rock oozes out of large crack in ocean's floor

Answer 33

Mid ocenaic ridge

Question 34

Volcanoes grow up from the ocean

Answer 34

Volcanic islands

Question 35

Shallow area form around continents edge

Answer 35

Continental shelf

Question 36

Deposition

Answer 36

Laying down or depositing of sediments

Question 37

What diversity would you find in a pond

Answer 37

There's a lot of underwater animals and not underwater animals. Some can fly somewhere or micro scopic

Question 38

What are differences and similarities of Lake sounds and ocean zones

Answer 38

Similarity are the other living things interact with other living things. The differences are there's greater diversity and oceans and different kind of diverse environments

Question 39

What are the zones in a pond or lake

Answer 39

Upper zone of the lake where aquatics plants grow and small fish and insects live. Middle zone is open water and plyo tank in our food for fish The lowest stone has no light and bigger fish

Question 40

Does the zones in an ocean

Answer 40

Estuary. Freshwater and saltwater oceans mix and form brackish water lots of birds and different kinds of plants and animals. Intertidal zone. Animals and plants have to be able to withstand the pounding waves to live here Continental shelf. A shelf of land that extends out from the edge of a continent below the ocean surface. Yannick zone. Deepest parts of the ocean no light and little oxygen

Question 41

Benefits and costs of agriculture

Answer 41

Benefits are there's a lot of economy for different countries and there's food. Costs are over irrigation of soil can dissolve salt in the soil

Question 42

Industrial cost and

Answer 42

Benefits are it is used as a coolant for washing pollution before released back into the environment Can affect water is the water is not cleaned before it's put in to the environment again

Question 43

Benefits and costs for domestic

Answer 43

Nephets are there pumped into homes for developed countries. | Costs are some homes cat have water pumped into their homes

Question 44

Factories

Answer 44

Add dangerous chemicals to water

Question 45

Power Stations

Answer 45

Discharge warm water

Question 46

City

Answer 46

Oil, salt and other chemicals affect plants and animals

Question 47

Farmland

Answer 47

Can cause excessive plant growth

Question 48

Habitat destruction

Answer 48

Takes away places the animals and plants live

Question 49

Oil spills

Answer 49

Harm animals in the water around it

Question 50

Sewage

Answer 50

Uses up oxygen for fish