10.3 Flashcards
What’s are some factors affecting run off?
The nature of the ground material The amount of rain The length of the time it rains The slope of the land The amount of vegetation The amount of development in the area
Drainage basin?
The area of land on which precipitation falls and works its way into a common river
What usually separates a drainage basin?
A divide
Divide?
A area of high ground
Ground water?
The water that makes its way into the spars of rocks
What are rocks called when they have many pores?
Good porosity
aquifer?
A layer of rock that is porous and allows water to flow through
Reservoir?
Large human made or natural lakes that store water until people need it
Well?
Very deep, narrow hole drilled or dug into the ground to a depth where water can be found
What level does the water table lie at?
Zone of saturation
What is below the zone of saturation?
Pore spaces between rock particles are filled with water
Is a water table deeper in the desert or in a forest beside a lake?
Desert
Is a water table deeper in the summer or winter?why?
In the summer because during the wet months of winter more water soaks into the ground from rain or snow
How much of the earth is covered in glaciers?
About two thirds
Glacier?
Large masses of snow and ice
How do glaciers form?
More snow needs to fall in the winter than melt in the summer
How much do glaciers cover the worlds land area?
10%
What are the types of glaciers?
Alpine and continental
Alpine glaciers?
Located in mountain areas
Continental glaciers?
Massive and cover large areas of land
Where r the two most large ice sheets found in the world
Antarctica and Greenland
He’ll do glaciers play a big role in the water cycle?
In the last ice age, glaciers covered most of the earth. The water that should’ve been moving through the water cycle was frozen in ice. Ocean levels dropped to about 100m less than they are today.
