Flashcards in Quiz One Deck (26):
Rate of Natural Increase
(CBR - CDR)
/ 1000, expressed as percent
Time expressed in years for a population to double
(70 / RNI)
Demographic Transition Model
Tracks progress of countries
Pre-Industrial Stage (1)
High birth rate and death rate, fluctuating
Transitional Stage (2)
Both numbers are stabilizing, both decrease.
Food production, and medical care
Industrial Phase (3)
Birth rates decline
Increased care for women and birth control
Post-Industrial Phase (4)
Numbers are fluctuating again, but are low. Increased
DevelopED nations are skinny and rectangular
DevelopING nations are wide-based, skinny at the top, which means people die earlier.
40% of the population is 15 y/o
Aims to see how humans impact the environment, more modern way to see geography.
Biosphere, Lithosphere, Atmosphere, Hydrosphere
James Lovelock stated that we haev managed to damage all components of Gaia
Believes hundreds of people are going to die.
Gaia theory, stated that earth works on its own homeostasis level
Majority of technology that humans have produced
Industry, Agriculture, Transportation, Urbanization
Can transfer energy AND matter
Does not receive or distribute matter.
Feedback - Positive v Negative
Positive amplifies, negative reduces.
Equilibrium - Steady-state v Dynamic
Low or high fluctuation through the average state
If feedback loops go past a certain state, then the loop will operate on a different level.
Main four spheres
Relative Time Scale
Based on sequencing of superposition
Absolute Time Scale
Radiometric, carbon dating
All the trees are dead
Time when humans affected the environment the most
Existed before humans
Derivative of the four spheres