4. Nature,Enviroment And Energy Flashcards
(105 cards)
Contanination
Pollution by poisons or dangerous elements
Atmosphere is often contaminated by smog
The biosphere
The relationship between all living things on the planet
Children should be educated on biosphere through field trips and practical experiments
Emissions
Gases enteribg the atmosphere
Scientists spend their whole careers studying the effect of emissions on climat
From cars, factories and other human activities
Pollutant particles
Microscopic elements of pollution
Snow covered with pollutant particles
Run-off
Water that runs from the ground into rivers and lakes
We should try to collect and use more run-off water, to avoid having to recycle water so much
The water cycle
The natural process of water moving from clouds to rain and seas
Scuentists believe the water cycle is responsible fir various natural events, esoecialy in ciastal areas
Aquifers
Underground, natural water stores
A well which conects to aquifer, giving very pure water
Filtration
The proces of filtering and removing inpurities
Water filtration might be acsolution to water shortages in very got countries
Water table
The layer of water below the ground
The water table is very high, and water will appear in even a small hole
Tainted
Polluted or contaminated
The mediterranean is badly tainted in some areas by sewage pollution
Soil erosion
The loss of soil by wind and rain activity
Defirestation has increased soil erosion seriously in Brazil
Logging
Cutting down the trees for timber and industrial use
Logging has endangered many species throughout the world
Dumping
Leaving waste deliberately without storing or treating it
In most countries dumping rubbish is a criminal offence
Waste
Any material not wanted or needed after process
Landfills
Organised area where waste is buried in the ground
Surprisingly, Britain still sends most of its domestic waste to landfill sites
Waste processing
Recycling or reducing waste into manageable forms
Waste processing companies are subsidised by the local authorities
Poaching
Illegally hunting and killing animals
Habitat loss
Destruction or disappearance of an animal’s natural home
Logging has caused substantial habitat loss for wildlife in many countries
Food chain
The natural system of animals eating other animals
The food chain has been disrupted by the loss of certain species with widespread impacts on all animals
Dwindling numbers
To steadily decline in quantity
To dwindle
Dwindling funds to pay for animal sancturies
Extinction
The final death of all animals in a species
Famine
A situation where is a lack of food in the are for a long time
To raise funds for famine relief
Drought
Similar tu famine, but lack of water
Irrigation
Supplying water to land for agriculture
If we want quick solution for famine better irrigation and farming methods
