bio Diverse City Flashcards
biodiversity
Number and variety of different types of species in a given area
-source of food shelter medicine etc.
non-renewable resources
can’t be replenished by nature within our lifetime
-fossil fuels are oil, coal, gas
renewable resources
can be restored by nature in lifetime
-examples are water carbon oxygen wind and sun’s energy
negative human impact on the environment
- habitat destruction
- Poor land use/management
- resource depletion
- invasive species, pollution, loss of biodiversity
habitat destruction
- Causes almost 75% of extinctions
- deforestation for farming and land for building
resource depletion
- Society heavily relies on non-renewable resources
- tend to deplete and pollute renewable resources (water air forests etc.)
water pollution
-Chemical waste like heavy metals, fertilizers, pesticides and heat are discharged into water. Either from dumping or run off
what makes an ecosystem stable
more producers than consumers, needs constant input of energy, decomposers to recycle nutrients, biodiversecity
bioaccumulation
increase in the concentration of a chemical in an organism over time
Air pollution
contaminates air we breathe, produces acid rain and contributes to global warming
acid rain
acidic precipitation kills plant life and disrupts food chain
invasive species
organisms that are non-native to the area that were newly introduced to
- population explodes because they don’t have natural predators
- disrupts stable ecosystem
loss of biodiversity
- due to direct harvesting, the destruction or removal of species from their habitats
- causes species to become endangered or extinct
Global Warming
an average increase in the earths temperature which causes climate change
-caused by more CO2 & other greenhouse gases being added to atmosphere from burning of fossil fuels and deforestation (industrialization)
greenhouse effect
heat is trapped in earths atmosphere due to greenhouse gases
