EARTH AND EARTH SYSTEM Flashcards
set of interconnected components that are interacting to form a unified whole
System
system in which there is only an exchange of hear or energy and no exchange of matter
closed system
this gaseous layer that envelopes the lithosphere
atmosphere
The present atmosphere is composed of __ nitrogen, __ oxygen, __ argon
78% Nitrogen
21% Oxygen
0.9% Argon
One of the most important processes by which the heat on the Earth’s surface is redistributed is through ____
atmospheric circulation
A constant exchange of heat and moisture between the atmosphere and the hydrosphere through ___
Hydrologic Cycle
includes the rocks of the crust and mantle, the metallic liquid outer core, and the solid metallic innercore
Lithosphere
set of all life forms on earth
biosphere
True or False
Sunlight is not necessary for life
True
is about 70% of the earth is covered with liquid water and much of it is in the form of ocean water
hydrosphere
How many percent of Earth’s water is fresh
3%
are important sinks for CO2 through direct exchange with the atmosphere and indirectly through the weathering of rocks
oceans
is absorbed and redistributed on the surface of the Earth through ocean circulation
Heat
graphical representation of the proportion of land at various elevations
hypsographic curve
___ are in the form of ice
___ present in streams, lakes, and groundwater
2/3
1/3
another important process contributing to the shaping and reshaping of the surface of the Earth
hydrologic cycle
4 Earth’s Subsystems
- Atmosphere
- Lithosphere
- Biosphere
- Hydrosphere
system in which there is only an exchange of heat or energy and exchange of matter
open system
