midterm 1 Flashcards
What is the difference between good ozone and bad ozone
Good: protective stratosphere layer.
Bad: low level ground - harmful air pollutant causing respritory and damages vegitation
Good ozone in the stratosphere forms a protective layer that shields the Earth from the sun’s harmful ultraviolet (UV) rays.
Bad ozone is at ground level and is a harmful air pollutant. Ground-level ozone can cause respiratory problems, and harm sensitive vegetation and ecosystems. It is a primary component of smog.
What pollutants are primarily responsible for acid rain?
Sulphur and nitrogen oxides
How does the melting of permafrost contribute to global warming?
The uncovered vegetation decomposes and releases greenhouse gases
Why are hydrogen-powered vehicles less efficient compared to electric vehicles?
Hydrogen production is energy-intensive
What type of synthetic fuels are being researched as a green alternative to gasoline and diesel?
Synthetic gasoline, Synthetic diesel, Synthetic methanol
(All of the above)
What is the primary source of power for British Columbia’s grid?
Hydroelectric
Name one type of source for groundwater collection used in ancient times
Wells
wells
what are the 5 levels that make up groundwater
Vadose Zone (Unsaturated Zone), Water Table, Saturated Zone, Confined Aquifer, Unconfined Aquifer
What are the 3 types of groundwater flow systems?
Local, Intermediate, Regional
How does air pollution travel from one place to another - at least two ways
Temperature, humidity, wind speed, and wind direction
Three types of air pollutants when describing migration?
Local, Regional, and Global
What is the largest contributor to climate change?
fossil fuels
Name 3 examples of brownfeilds
Lumber mills, Mines, Socioeconomic, Petrochemical
Name and explain one of the criteria of the Brownie awards
Remediate sustainable Remediation & Technological Innovation
what is the order of steps in brownfield mitigation?
Site assesment, Risk assesment, Liability assesment, financing, remediation
The sound that reach _____dB harms human’s ears.
85
Name three sources of noise pollution in the city
Road, Construction, Rail
Name three mitigation methods for noise pollution in the city
Scheduling construction’s noisy activities carefully,
Acoustic Fencing around noisy places, Sound Walls for noisy roads
Describe the mechanism for eutrophication
Excess of nutrients cause algae bloom. Once algae die, bacteria decompose algae which uses up oxygen.
What makes thermal pollution so harmful?
Higher temperatures decrease dissolved oxygen levels in water
Explain the mechanism for biomagnification/accumulation
As chemical pollutants are introduced to aquatic ecosystems, lower trophic levels (producers, primary consumers) will absorb some of it. Higher trophic levels consume large amounts of the lower levels and accumulate the pollutants such as DDT or Mercury over their lifespans
Name the three different types of green roofs
Intensive, Extensive, Semi-intensive
Name two different benefits of green roofs
Reduce energy usage, reduces stormwater runoff, reduces noise pollution, increases life span of roof (Any of these two)
