environmental science Flashcards
intergenerational equity
it is the principle of fairness and justice in relation to the distribution of resources, opportunities, and burdens across different generations
intragenerational equity
it relates to the notions of fairness and justice across the communities and states within the present generation
toxicity
To extent to which something that is poisonous or harmful
lethal dose
this is an indication of the lethal toxicity of a given substance or a type of radiation
lethal dose of water
6 litres
Coffee lethal dose
118 cups
Alcohol lethal dose
13 shots (standard shots)
least toxic chemical
Vitamin C (11,900mg)
most toxic chemical
Sodium Cyanide(6.4mg)
qualitative data
talking about the quality of the object
quantitative data
can be counted
LD
lethal dose
Bioaccumulation
The increase in concentration of harmful toxins within an organism
biomagnification
increase in concentration of harmful substances in the environment as they pass through successive trophic levels
biomagnification (known in trophic levels)
The lower trophic level it is there will be less toxins in them, in other words saying is that the organism in the bottom of the food chain normally contains the least toxins
DDT (pesticides)
DDT is a chemical that is tasteless, colorless, and odorless chemical
hydrosphere
the hydrosphere is the combined mass of water found on, under and above the surface of a planet ( for earth it is the place where water is present )
lithosphere
it is the rigid outer part of the earth, consisting the crust and upper mantle
geosphere
the geosphere its earth iteself
aquaculture
it is aquafarming, and is the controlled cultivation of aquatic organisms such as fish, crustaceans.
the four sustainability principles
ecological integrity, social equity, economic efficiency, and intergenerational equity
Sustainability
the ability to maintain or support a process continuously over time
respiration process
the exchange of oxygen and carbon dioxide in order to make energy
food chain
one living organism eats another organism, and later that organism is consumed by another larger organism
nocturnal
animals that are awake at night
diurnal
animals that are living under the sun, during day time
crepuscular
animals that are active during dawn and dusk
contaminant
Any substance or material that makes something impure or unsuitable by introducing harmful or unwanted elements. Contaminants can affect air, water, soil, or food
toxin
Naturally occurring poisonous substances from living organisms
contamination
The presence of harmful or unwanted substances in the environment
source of contamination
The origin or starting point from which pollutants or harmful substances are released into the environment. These sources introduce contaminants into air, water, soil, and ecosystems, impacting health and the environment.
point source
pollution that originates from a single location, making it easy to trace back to it’s source
some examples can be: factory discharge pipe, oil spill, and smoke stack
diffuse source
Pollution that comes from multiple, dispersed sources over a large area, making it harder to pinpoint any single origin
some examples can be: road emissions, urban stormwater
mobile source
Pollution from moving sources, often related to vehicles that release emissions as they operate
some examples can be: trucks, cars, planes
difference of pollution and contamination
Pollution is the widespread release of harmful substances into the environment, while contamination is the presence of harmful substances in specific areas or materials
chemical contamination
Involves harmful chemicals entering food or products, which can lead to toxicity or poisoning
Physical contamination
Occurs when foreign objects enter food or products, potentially causing harm or choking hazards
pollutant
A substance that harms the environment by existing at high, harmful concentrations
apex predator
it is the animal that sits at the top of a food chain, where there are no predators to it. For example, lions and great white sharks.
predator
an animal that eats other animals
food chain
A linear sequence of organisms where each is eaten by the next, showing the flow of energy and nutrients
producer
Organisms that make their own food through photosynthesis or chemosynthesis, forming the base of the food chain
primary consumer
consumers that primarily consume the producers
secondary consumer
consumers that consume the primary consumers
tertiary consumer
basically apex predators
decomposer
organisms that breakdown dead or decaying organic matter, the play a crucial role in the nutrient cycling within the ecosystem.
autotroph
Organisms that produce their own food, typically through photosynthesis or chemosynthesis, forming the base of the food chain (some examples can be plants)
heterotroph
Organisms that cannot make their own food and must consume other organisms for energy (most animals, fungi and bacteria)
stakeholder
an individual, group or organization involved in the decision making related to environmental project or issue
stakeholders value
the set of principles, standards or the qualities a stakeholder holds
endocrine (canton meaning)
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