70%
At the middle course, the river flows more slowly and forms curves called what?
Meanders
What is the river basin?
All the land that the river flows through
When water inside leaves of a plant evaporates directly into the air
What % of the earth is fresh water? What is all the rest?
1% is freshwater, the rest is saltwater
At the lower course, does the river get wider or thinner? Does it get slower or faster?
Wider and slower
The area where the river meets the sea or the ocean is called the __
The drainage basin
What forms clouds?
Condensation of water vapor to water droplets
What is the name for a flowing body of fresh water, usually formed in mountains?
A river
The place where the river begins
The source
If a river flows into another river it is called a ___________.
Tributary
When water goes from gas to liquid it is called
Condensation
Why do people make wells?
To access groundwater in aquifers?
What is the difference between a sea and an ocean? Are they freshwater or saltwater?
Seas are saltwater just like oceans, but they are smaller than oceans.
The place where the river meets the ocean
The mouth
What is the riverbed?
The ground underneath the water of the river
When the sun heats bodies of water and it changes state to water vapour, this is called __?
Evaporation (liquid --> gas)
What forms aquifers?
Groundwater collecting in porous rocks under the ground
Name the 5 oceans. Which is the biggest?
Biggest is the Pacific Ocean.
The others are: The Atlantic, the Indian, the Southern, and the Arctic.
The upper course is closest to the: a) source or b) mouth. Does it flow quickly or slowly at this stage?
a) source.... QUICKLY!
What are the three watersheds of spain?
The Caribbean watershed, Mediterranean watershed, & the Atlantic watershed
What is sublimation
When ice evaporates directly into the air. (Solid to gas)
Some water comes to the surface through what?
Through natural springs