Earth System: Chapter 1
Terms in this set (21)
Name and distinguish between the two broad subdivisions of geology
The two types of geology are physical and historical. Physical geology is what makes up the earth underneath and above. Historical geology is focused on the study of the origin and growth of the earth
Three different geological hazards
earthquake, tornado, and hurricane
Aside from geologic hazards, describe another important connection between people and geology
A connection people and geology have is the humans make artificial changes and these changes may not let natural systems adjust. This adjust could then be unpredictable. Another thing is humans contribute to global warming
Why is understanding planet earth challenging
Understanding planet earth is challenging because it is continuously changing and new species are forming. Also we cannot see all of the earth and we cannot reach all parts of the earth.
Describe Aristotle's influence on geology
Aristotle believed that rocks were created by the influence of the stars. He also came up with how earth quakes occur when air is crowded up underground, heated up, and the heat escaped explosively
Catastrophism vs. Uniformitarianism
Catastrophism was an idea that earth's landscapes we shaped primarily by great catastrophes. Uniformitarianism was the idea that changes in the earth resulted from continuous uniform process
How old is the earth?
4.6 billion years old
What eon, era, period, and epoch do we live in?
Phanerozoic, cenozoic, quartenary, and holocene
Why is understanding the geologic time important for geologists?
Important because without the geologic time, the years would have to be attempted to be calculated manually and also it would be unclear what time periods laid where.
Scientific theory vs. Scientific theory
Scientific method is a well tested view that scientists agree best explains a certain observable facts. Scientific hypothesis is when someone tries
Example of a scientific hypothesis
when exposed to _________ the subject will turn soft
What are the four spheres
hydrosphere, geosphere, atmosphere, biosphere
mass of water that continuously evaporates from ocean to atmosphere
includes all life on earth
What is underneath the surface
Compare the atmosphere and the geosphere
the atmosphere is very thin and shallow whereas the geosphere is thick.
How much of earth do oceans cover
Oceans covers 71%
What is a system
a group of interacting parts that form a complex whole.
Examples of a system
solar system, transportation system, and weather system
what are two sources of energy for the earth system?
The sun and the earths interior
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