Fresh And Saltwater Systems Unit Test Flashcards
List factors of water quality
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
How is water distributed on the earth for
3% is fresh
0.0009% is in the atmosphere
97% is salt
26% is land
74% is water
What is the difference of between hard and soft water
Hard water had more mineral content then soft water
Distillation
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
Reverse osmosis
Forcing salt water through a filter or membrane with holes small enough fir water to pass through but not salt
What causes waves and how forget form
Waves are changes in patterns that move along the waters surface. Most waves are caused by winds
What effect does water have on shorelines
The force of waves crashing against a shoreline can shape the shore
What are tides and what causes them
The gravitational force of the moon is the main cause for ocean tides on earth
The 1st stream characteristics
A river or stream may start in the mountains where a glacier is melting
2bd stream characteristics
In early stages it flows swiftly and straight
3rd stream characteristics
As the ground becomes more level the water slows down
4th stream characteristics
At the mouth the river enters a lake or ocean
What is chemical weathering
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
What makes a watershed
A water shed is all the area of land that drains into one main lake or river
What is the theories of continental drift and plate tectonics
Plates move ver slowly across the earth because of convection currents within earth
How do these theories explain geological feature on the ocean floor
Theses movement have shaped the geological features on the ocean floors and many of those on continents
Moralines
Form from rock and gravel build up along side of a glacier
Eskers
Form when parts of glaciers melt tunnels under ice
Drumlins
Small hills in a teardrop shape form when a glacier moves over moralines
Kettle lakes
Formed when large chunks of ice left when glaciers melted away
Delta
Repeated glaciation has worn them down
What effect does large bodies of water have On the climate
The main effect that it has on the climate in an area is to prevent extremes I. Temperatures
What effect does ocean currents have on the climate
Currents can carry warm water to colder areas
What is diversity
Variety of differ t kinds of species living in A area
In what ways do humans use water?
Agriculture 73%
Industry 22%
Domestic 5%
Potable water
Water humans can drink safety
Our of fresh water ________% is ice,groundwater,lakes rivers and wetlands
Ice 77%
Groundwater 22%
Lakes,rivers and wetlands 1%
What is the basic saltwater solution?
- 5% water
3. 5% dissolved salts
How are tsunamis formed
Earthquakes can create huge ocean waves called tsunamis
Stream characteristics
Include the rate of water flow and slope of streams bed
What do hot springs do?
Hot springs bring dissolved sediments up within the earth and deposit them on the surface
Two plants moving toward eachother meet
Ocean trench
Molten rock oozes out of large crack in ocean’s floor
Mid ocenaic ridge
Volcanoes grow up from the ocean
Volcanic islands
Shallow area form around continents edge
Continental shelf
Deposition
Laying down or depositing of sediments
What diversity would you find in a pond
There’s a lot of underwater animals and not underwater animals. Some can fly somewhere or micro scopic
What are differences and similarities of Lake sounds and ocean zones
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
What are the zones in a pond or lake
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
Does the zones in an ocean
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
Benefits and costs of agriculture
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
Industrial cost and
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
Benefits and costs for domestic
Nephets are there pumped into homes for developed countries.
Costs are some homes cat have water pumped into their homes
Factories
Add dangerous chemicals to water
Power Stations
Discharge warm water
City
Oil, salt and other chemicals affect plants and animals
Farmland
Can cause excessive plant growth
Habitat destruction
Takes away places the animals and plants live
Oil spills
Harm animals in the water around it
Sewage
Uses up oxygen for fish
