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Human influences on the environment - Coggle Diagram
Human influences on the environment
we increase the food production reducing the habitat available for other species
agricultural machinery (methane), chemicals such as fertilisers, insecticides and herbicides, selective breeding
monoculture
different species of plants growing as a simple variety
less biodiversity
increase in the population of organisms
that are pests of the crop
insecticides
intensive farming
welfare issues for livestock
diseases
pollution
habitat destruction
by cutting down vegetation
deforestation
flooding
water cycle
mining for natural resources
adding pollutants to land and water
chemical waste
removing key species
pollution
greenhouse gases
carbon dioxide, methane, nitrogen gases, CFCs
air pollution
carbon dioxide and methane are both covalent compounds
it is the chemical bonding formed by two or more non-metals
they are also gases, which means that the particles are separated and there's nothing between them
atomic structure
burning fossil fuels
carbon dioxide
kept in the atmosphere
greenhouse effect
increase in temperature
acid rain
pH below 7
lakes are acidified
produced by nitrogen oxides when air is heated in furnaces
non-biodegradable plastic
hormones in female contraceptive pills
hormones are excreted through urine and reach rivers affecting the fishes growing and reproduction.
connection with human reproduction
burning coal or oil
electricity
produces sulfur dioxide
nuclear power stations
radioactive substances
sickness and burns
cancer
eutrophication
no oxygen available for species living under water
Harmful substances to the environment
pesticides
substance that kills organisms which damage crops
DDT
food chains
it is a diagram showing the flow of energy
from one organism to the next beginning with a producer
found in water and animals feeding
positive influences
conservation
process of looking after the natural environment
forests and fish stock
looking for sustainable resources
recycling glass, plastics, paper, metals
they are all inorganic compounds which generate a lot of pollution
sewage treatement
water treatment