Why are water systems important?
Characteristics of rivers and oceans
How we change rivers and oceans
Protecting Earth's rivers and oceans
100
What is this a picture of?
The water cycle
100
What is the source of a river?
Where a river or stream begins
100
What is this an picture of?
A dam
Kariba dam in the Zambezi river
100
Slowly breaking down into natural parts by natural processes
Biodegrade
200
What are water systems?
Bodies of water and all their parts
200
What is the triangular section of this river called?
Delta
200
What is river diversion?
Changing the course of a river to meet a need
200
What are the two main ways to protect rivers and oceans?
Reducing pollution and taking action
300
Swamps, marshes, bogs, and lagoons are examples of what?
Wetlands
300
What is represented by the circular patterns on this map?
Gyres
300
What is the direction towards the mouth or lower part of a river?
Downstream
300
What method of protecting rivers and oceans is reducing plastic use?
Taking action
400
When concentrated minerals remain in water they give it _____________?
Salinity
400
How is deposition related to rivers and the land?
Rivers carry eroded material and deposit it in other locations
400
The ocean habitats of tiny marine organisms being destroyed by human activity and pollution
Coral reefs
400
What is renewable energy?
Energy from natural sources that doesn't run out (solar panels, wind mills etc)
500
What percentage of the earth's water is freshwater?
3%
500
What is the mass of warm water that travels from the western to eastern pacific and affects ocean patterns?
El Nino
500
Poisonous chemicals, pesticides, and metals like mercury in the ocean are examples of what?
Toxic waste
500
In the past, what did people hope would biodegrade overtime?
Water pollution