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negative human impacts into the environment (Deforestation (farming (e.g.…
negative human impacts into the environment
Land use
Building
roads
removes habitats for plants and animals
homes
factories
release CO2 into the atmosphere
Waste
pollution
electricity generated
smoke
factories
SO2 / CO2
greenhouse effect
slowly heats the planet by not allowing the solar radiation to escape the planets atmosphere
acid rain
sodium forms an acid inside clouds and this forms acid rain
cars
landfill
industrial
acidifies the soil as large rubble is placed into landfill and releases chemicals
domestic
fills land with materials that may take decades to decompose and may never fully break down, this includes most plastics
nuclear
introduces nuclear radiation into the water and land that can cause mutations and kill animals or plants, destroying habitats
fills in areas that could be habitats for other species
sewage
destroys habitats with chemically treated waste
Quarrying
coal
granite
limestone
Agriculture
crops
monocultures
very few animal species can be supported b one type of plant creating very low biodiversity
intensive farming
reduces the area of land available for the natural plants and animals to establish a large biodiversity
overgrazing cattle
the grasses cannot sustain the insect life in the area that the cattle graze
removal of natural habitats
the animals and plants that were i that habitat will find it difficult to relocate from the destroyed habitat
fertilisers / pesticides
eutrophication
Deforestation
farming
monocultures
e.g. palm oil
roughly 18 million acres are lost every year for the production of palm oil
biodiversity
70% of all the species on the planet live in rainforests
wood: for furniture, fuel and buildings
roughly half of the wood cut down is used for fuel
lots of possible future medicines
these can be provided by insects or beetles
many species have been unable to recover from habitat loss and CO2 emmisions
Hunting
Animals are killed for tusks, skins and horns
overfishing
reduces the fish populations and increases chance of extinction
endangered species
species near extinction that are protected and often are kept in reserves or zoos to protect them
e.g. rhino
live in grasslands, savannas, shrub lands and forests
reduced to 5000 individuals overall after being over 100000
extinction
extinct species are never coming back
reduced by using nature reserves and zoos to keep animals safer
Introduction of new species
competition / disease / predators
grey squirrel
acted as competition for the red squirrel for the food
rabbit
myxomatosis
damages the skin, eyes and lungs of animals
transmitted by insect bites and from wild to pet rabbits