Pollution Flashcards
What two things have negatively affected the environment for centuries?
Over exploitation and pollution.
What does ‘Monoculture’ do?
It keeps the cost of production low while reducing biodiversity and damaging the soil.
Define Pollution.
Pollution is the contamination of land, water or air by the discharge of harmful substances.
Name three types of pollution(excluding land, water and air).
Noise, Light and Solid waste.
Define Land pollution.
Any type of solid, liquid or gaseous discharge released by humans that directly affect the land around them.
What is solid wastes and list a few.
Solid wastes are non biodegradable pollutants. Example: plastic botlles, glass, Stryofoam and metals.
Define ‘Eutrophication’.
Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus or both.
List 5 stages of ‘Eutrophication’.
Addition of Nutrients, Growth of Plants, Death of plants, Lack of oxygen and Suffocation.
Name the origin of Non-Biordegradable items.
Households, factories, restaurants and events.
List the domino of effects with Non-biodegradable items.
Blocking waterways, flood, disease, pests loss of crops.
Name a way to control this pollutoin.
Reduce production of Non biodegradable items and replace it with bio-degradable items. Dispose of it responsibly by Recycling and Reusing.
Name the origin of lead, mercury, plastic particles and cyanide.
Households and Industries.
What is one effect of this pollution?(lead, mercury, plastic particles and cyanide)
Can enter the environment and poison organisms.
Name the origin of insecticides and herlacides.
Agriculture.
What is the effect of this pollution?(insecticides and herlacides)
It can accumulate in organisms and kill top consumers also it can cause mutation and cause eutrophication.
What is one way to control this pollution?(insecticides and herlacides)
Replace with less toxic alternative such as biological control.
What is water pollution?
Water pollution is caused by any type of pollutant that contaminates seas, rivers or lakes.
Name three ways oil enters the environment.
Oil enters the environment through tankers, pipes and rigs.
List 3 effects of Oil Spills.
Prevents oxygen and light the water column indirectly killing marine life, kills life indirectly from preventing flying, thermoregulation, feeding and breathing. Lastly the toxins may enter the body and cause health issues.
How to control Oil Spills?
Be more careful with operations and deal with issues urgently, legislation to reduce causes of oil spills and for consequences and spills should be localized with the best available technology.
Where does hot water orginate?
How water is discharged from power station and factories.
What is the effects of hot water entering the environment?
It can lead to death or migration of marine life and coral may die while some organisms may flourish leading to an imbalance in the food chain.
How to control Hot water entering the environment?
It can be cooled before released and it can be used to warm or power homes.
What is the origin of organic waste?
When untreated sewage from ships, housed and farms are realeased back into the water ways.
What is the effect of organic waste?
The bacteria can multiply and use up the oxyen, can lead to eutrophication.
What is the origin of mineral salts?
It is found in detergents, sewage and water from houses and farms.
What is the effect of mineral salts?
It can lead to eutrophication.
How to control mineral salt pollution?
Use detergents with minimal amounts of mineral salt.
