Until 1 Flashcards
(23 cards)
Interdisciplinary Science
Biology,Zoology and geology
biodiversity
the number and variety of species that live in the area
what does the Ecological Footprint measure
the environmental effects of an individual in terms of total amount of resources required
sustainability
able to meet the current demand for a resource without depleadibg the future supply
Tragedy of the commons
using resources at an unsustainable rate will course the resources to be gone completely
ethics
set of moral principles
environmentalism
concern about an action aimed at protecting the environment
what are the 4 steps to decision making model
1)Gather information
2)consider values
3)Explore consequences
4)make the decision
habitable zone
area around a star where only planet present would have liquid water on its surface
What planet characteristics we need to have life supported
Terrestrial
Gas Giants
solar wind
stream of charged particles from stars consisting of electrons and protons
why do we need tectonic activity
supply surface with life sustaining materials
Atmosphere with temperature moderators
recycles important chemicals
what are the 3 eras of life
paleozoic(accient life)
mesozoic(middle life)
cenozoic (recent life)
what era/epoch are we in today
Holocene Epoch
precambrian
called supereon
divided by hadrian Archean and proterozic
what came about in the Hassan period
earth formed
what came about in the Archean
1st life appears
what came about in the proterozic
snow ball earth
what happened in the paleozoic era
Cambrian explosion
Warm shallow seas
fish emerged
what formation did the Paleozoic era close
pangea
What happened in the Mesozoic Era
Pangea broke
Reptiles became the most abundant animals
Dinosaurs
small mammals and birds
what caused the mass extinction
Asteroid or comet collided with earth
what happened in the Cenozoic era
Large mammals appear
Ice ages occurred late
First human life
