Environmental science, and how it's done
A(n) ____ is used when we want to test whether a prediction that arose from a hypothesis is correct.
experiment
Is the hydrological cycle a geological cycle? Why?
YES! It's a sub-cycle
True or false: soil is a component required to make a functional ecosystem.
(Justification for full points!)
FALSE! Recall the four components required to make a functional ecosystem
A(n) ___ is a sudden release of built up strain energy in rock subjected to tectonic forces
earthquake
A ____ feedback loop is homeostatic.
negative
A(n) ___ worldview is one that is centred on the environment
ecocentric
____ properties are those that are exhibited by a larger body (e.g. a lake with many, many water molecules), not by an individual object from that body (e.g. one water molecule)
Emergent
True or false: in most biogeochemical cycles, transformations to and from inorganic and organic forms occur.
(Must provide justification to get full points!)
TRUE!
___ crust is made of denser basaltic rock
Oceanic
The mass of a substance in a reservoir is called...
Is the following an example of environmental science: Eco Canada advocates for the protection of rivers and lakes.
(To get full points, you must provide a justification!)
No!
The name given to the time between about 540 and 600 million years ago, when there was a rapid increase in the number, diversity, and complexity of species is called the ____
Cambrian Explosion
___ is a strategy that uses biodiversity and ecosystem services to help people and communities adapat to climate change.
(In order to get the full points, you must provide the short form!)
Ecosystem-based adaptation or EbA
True or false: both P and S waves can travel though liquid.
FALSE
True or false: a system supports life
FALSE
A dominant view in science or society
A paradigm
Why is the transparency of water an important property in regards to ecosystems and ecosystem services?
Multiple accepted answers - discuss in class
Name at least 2 processes of the nitrogen biogeochemical cycle
Accepted answers:
- Nitrogen Fixation
- Nitrification
- Denitrification
- Ammonification (Mineralization)
___ is the material that is most abundant in the mantle.
Solid, hot silicate rock
True or false: a rock is a closed system
(Justification for full points!)
FALSE! Recall the properties of a system!
____ ____ set the environmental limits within which humanity can safely operate
Planetary boundaries
What was earth like when it was first created?
Multiple acceptable answers:
HOSTILE
Atmosphere: H + He
Radioactive decay in earth’s core → volcanoes, hot lava flows, released gases
Debris + meteorites might have brought H2O + C-compounds
Ultraviolet radiation from sun (no ozone layer)
No ‘free’ O2
NO LIQUID water
NO Life
True or false: one characteristic that determines the size of an ecosystem is how many individual species are involved in the ecosystem.
(Must provide justification to get full points!)
FALSE! Species individuality is less important that the scale of the space!
The middle of a tectonic environment is called...
The intraplate
Drawing time!!! Go to the board! You have one minute to draw a box model of the hydrological cycle! We'll take a vote to see if you get full points or not! Timer starts at the end of this sentence.
To get full marks, at least 3 resevoirs, appropriate icons (arrows, boxes, etc), labelled fluxes