Key vocab
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What are abiotic factors?
Physical factors such as light, temperature and water
Define acidification
A process in which the pH drops as the conditions become more acidic
What is an acidophile?
An organism that thrives under acidic conditions
What are acoustic deterrent devices used for?
To deter mammals by using sound
What is acoustic fatigue?
Stress cracking of a material caused by repetitive vibrations induced by sound
What is acoustic monitoring?
Monitoring environmental sounds to detect the presence of dolphins, whales, or bats
What is an activated carbon filter?
A filter that reduces emissions of pollutants such as complex organic molecules
What are activation products?
Atomic nuclei that become radioactive because they have absorbed neutrons
Define active traffic management (ATM)
A method of controlling road lane usage and speed limits to smooth traffic flow
What does acute exposure refer to?
Exposure to a substance or symptoms that appear rapidly
What is adsorption?
The process where a substance fixes onto a surface
Define an aerobic process
A process that takes place in the presence of oxygen
What is aerodynamics?
The study of airflow over surfaces to reduce wind resistance and noise generation
What is afforestation?
Planting trees to increase the area of forest
What does albedo measure?
The reflectivity of a surface
What is an anaerobic process?
A process that takes place in the absence of oxygen
What is the Antarctic Treaty (1959)?
An international agreement to protect and manage Antarctica
Define anthropogenic
Describing outcomes caused by human activities
What is the aphotic zone?
Deeper layers of water that receive no sunlight
What is aquaculture?
The artificial production of aquatic organisms
What is an aquifer?
A rock which contains water that is abstracted by humans
What are archaea?
Microorganisms similar to bacteria, including the first life-forms on Earth
Define artificial insemination
A form of selective breeding where semen is inserted artificially into a female
What does ALARA stand for?
As low as reasonably achievable