1
Identify the moment when a minimum amount of change will cause destabilisation within a system and lead to a new equilibrium.
A tipping point
The Arctic cod, ringed seal, killer whale, polar bear and other organisms live and interact with each other in the cold waters of the Arctic Ocean.
Community
A community is a group of populations living and interacting in a shared habitat (biotic factors). The abiotic factors for this community have not been described but could be the depth of the water, light intensity and the nutrients available for phytoplankton.
What are the units of B.O.D?
mg/L (of organic material)
What are the two forms of natural capital?
Goods and services
Seb's favourite colour
Purple
State the Environmental Value System (EVS) that best matches the cartoon in the Figure.
State which of the following sampling techniques is not effective for sampling motile (moving) specimens.
A. Capture-mark-recapture
B. Sweep nets
C. Quadrat sampling
D. Pit traps
C
Quadrats are laid down in one place and thus are not useful or accurate in sampling creatures that can easily enter or leave a sample square. Each of the other three options are used specifically for moving creatures.
What is the name of the chemical pollutants responsible for reduction of the ozone layer? No abbreviation.
Chlorofluorohydrocarbons (CFCs)
What is the name given to the ability of a country to maintain uninterrupted supply of energy despite external factors?
Energy security
Number of students showed up for our last period 9 class. Be specific.
3 + 1 online
What is the Second Law of Thermodynamics?
Entropy will always increase
Distinguish succession and zonation.
succession is the process of changes in community/ecosystem over time, whereas zonation is the process of changes over an environmental gradient/space
State the type of ozone that is considered a pollutant.
tropospheric ozone
What are the two forms of natural capital?
The teacher Ayane is most scared of is...
Mrs. Endo
The population of Egypt was approximately 100 million in 2019. Calculate approximately how many people in Egypt died from outdoor air pollution in that year.
deaths/100,000=total deaths/total population
160/100,000 = total deaths/100,000,000
total deaths = 160/100,000×100,000
= 160,000 people
Other than temperature and precipitation, describe two characteristics of the tundra biome.
Low biodiversity
Low NPP OR productivity
Short growing season
Permafrost layer
Infertile soil (that is mostly bedrock)
Producers include mosses, grasses, shrubs
Species present are adapted to the cold
Found in the far, far north and south, and very high on mountains everywhere
Identify one cause of soil erosion.
What is the name of the changes in wind and ocean currents which occur in the Pacific (off the coast of Peru) every 2-7 years?
El Nino
Peter's birthday (including year)
Sep 28, 2006
Describe one ecosystem services that biodiversity provides.
Pollination services
Water purification services
Climate regulation services
Soil fertility and nutrient cycling
Soil fertility depends upon soil organisms breaking down organic matter so nutrients are released and can be used again.
A biodiverse range of soil organisms each play their part in nutrient cycling and maintaining soil fertility.
Suggest what species richness and species evenness indicate about the water quality of a stream. [2]
High species richness and evenness indicate high biodiversity and therefore high water quality OR low species richness and evenness indicate low water quality.
If either species richness OR evenness is low, this indicates low water quality.
Other factors besides water quality also influence species richness and evenness.
If only pollution-tolerant organisms are present, this also indicates poor water quality.
Distinguish between primary and secondary pollutants, using a named example involved in acid deposition.
Distinguish: Primary pollutants are emitted directly into the atmosphere, while secondary pollutants are formed in the atmosphere through chemical reactions involving primary pollutants
Example:
Sulphur dioxide (SO2) can react with water to form secondary pollutants such as sulphurous acid (H2SO3) and sulphuric acid (H2SO4)
Nitrogen oxide (NOx) can react with water and form a secondary pollutant: nitric acid (HNO3).
With reference to Figure 1 and Figure 2, identify one country in each region in a stationary demographic transition stage.
Word count of Taela's ESS IA (final draft)
2211