EVSC 100 UPDATED Questions and
CORRECT Answers
define environmental science - CORRECT ANSWER- the study of how the natural world
works, how our environment affects us, and how we affect our environment
-emphasis on population growth, resource depletion, and environmental degradation
what is ...
EVSC 100 UPDATED Questions and
CORRECT Answers
define environmental science - CORRECT ANSWER- ✔✔the study of how the natural world
works, how our environment affects us, and how we affect our environment
-emphasis on population growth, resource depletion, and environmental degradation
what is science, and natural science? list the steps of the scientific method in order -
CORRECT ANSWER- ✔✔-science: activities aimed at understanding the world around us
-natural science: understanding the natural and physical world
list the 5 spheres of the earth system - CORRECT ANSWER- ✔✔-lithosphere
-hydrosphere
-cryosphere
-atmosphere
-biosphere
define resilience in the context of earth systems - CORRECT ANSWER- ✔✔-the ability of a
system to maintain key processes by adapting to change/stressors
define a tipping point - CORRECT ANSWER- ✔✔a threshold beyond which an ecosystem
cannot recover from rapid change and stressors
different from a planetary boundary -- tipping points come after, where the boundary is an
early warning system
, define planetary boundaries and explain how they work - CORRECT ANSWER- ✔✔-a
defined space that acts as a buffer zone for response time before a tipping point/global
threshold is reached
green = safe zone
yellow = zone of uncertainty
red = high risk
planetary boundary = the intersection of green and yellow
threshold = the red and beyond area
what are the 9 planetary boundaries? - CORRECT ANSWER- ✔✔-climate change
-novel entities
-stratospheric ozone depletion
-atmospheric aerosol loading
-ocean acidification
-biogeochemical flows
-freshwater use
-land-system change
-biosphere integrity
define the holocene and the anthropocene - CORRECT ANSWER- ✔✔holocene
-previous period of temperature and earth system stability, allowed for civilization to develop
-the only phase that could support humanity
anthropocene
-humans are the primary drivers of change at the scientific level
-triggering new ecosystem regimes, new biophysical logic, new species taking over,
ecosystem becomes LOCKED
-unable to function in the same way as before, affecting all other systems around it
-these changes are rapid, unpredictable, and can be irreversible
-we NEED to bend the curve down to a holocene-like state to survive
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