The ability to meet the needs of the present without compromising the ability of future generations to meet their own needs
What is sustainability
A systematic process for exploring observations, answering questions, and testing explanations about the natural world
What is the scientific method?
These factors has an affect on population size
What are birth rates, death rates, and migration
Define the term ecosystem
What is interaction between living organisms and their environment?
The 2 types of acid deposition
What is wet and dry deposition?
This layer contains the ozone layer
What is the stratosphere?
N=n1 x n2
-------------
m2
What is the Lincoln index?
When all people have physical, social and economic access to sufficient, safe and nutritious food that meets their dietary needs
What is food security?
One of the world’s major terrestrial biomes
What is:
-desert
-forest
-grassland
-tundra
Impact of climate change on the environment
What are changes in:
-temperature and precipitation
-sea level
-ocean and wind circulation
-melting of ice
-species distribution and biodiversity
A process that involves competition (inter-specific and intra-specific), grazing, predation
What are biotic interactions?
Quadrats, pitfall traps, beating trays, capture-mark-recapture, questionnaires, interviews
What are techniques used to collect data?
The reliable availability of energy sources at an affordable price with a consideration of the environmental impacts
What is energy security?
The second level on an ecological pyramid
What is primary consumer?
Gases in the atmosphere that absorb infrared radiation
What are greenhouse gases?
How is energy lost in food chains
What is heat loss, waste excretion, and uneaten materials?
Methods of data collection that include the use of technology
What are:
-geospatial systems
-satellite sensors
-radio tracking
-computer modelling
-crowd sourcing
[young population (0 to 14) + old population (65+)] × 100 / population aged 15 to 64
What is dependency ratio?
The impacts of invasive species on biodiversity
What is:
-outcompeting
-preying upon
-transmitting diseases to native species
How increased concentrations of greenhouse gases in the atmosphere cause _____ which leads to global warming
What is the enhanced greenhouse effect?
Carbon dioxide is a limiting factor in the process of photosynthesis. State two other limiting factors.
What is water and sunlight?
A student selects only women aged 40–50 years for the recorded interviews. State a limitation of this sampling method.
What is bias?
Three impacts of energy insecurity.
What is
-Disrupted electricity supply
-Increasing prices for energy resources
-Job losses/unemployment
-Increased levels of poverty
-Health risks
-Economic instability
Some impacts of human activity on tropical rainforests
What is:
-deforestation
-fuel wood and timber collection
-agricultural expansion
-climate change
A mixture of air pollutants/particulates that is formed when oxides of nitrogen and volatile organic compounds (VOCs) react in the presence of sunlight
What is photochemical smog?